1 00:00:01,600 --> 00:00:04,360 Speaker 1: Ron and Anian have the battery test and consider changing 2 00:00:04,360 --> 00:00:07,560 Speaker 1: a little early. Better before warned and forearmed and stuck 3 00:00:07,560 --> 00:00:10,200 Speaker 1: out in the call, because being stuck in zero degree 4 00:00:10,200 --> 00:00:12,039 Speaker 1: weather in a parking lot trying to get home is 5 00:00:12,119 --> 00:00:24,280 Speaker 1: no fun and it can be deadly. The Car Doctor, 6 00:00:24,400 --> 00:00:25,799 Speaker 1: do you have a garage you can put this in 7 00:00:25,840 --> 00:00:29,520 Speaker 1: at night? Yeah? Is it heated? Okay, I'm surprised you're 8 00:00:29,520 --> 00:00:32,760 Speaker 1: in me and it's it's below what's wrong with you? 9 00:00:33,920 --> 00:00:36,559 Speaker 1: Tell mommy you need to heat a garage. Welcome to 10 00:00:36,640 --> 00:00:40,080 Speaker 1: the radio home of Ron Andanian the Car Doctor, since 11 00:00:41,360 --> 00:00:44,559 Speaker 1: this is where car owners the world overturned to for 12 00:00:44,680 --> 00:00:49,000 Speaker 1: their definitive opinion on automotive repair. If your mechanics giving 13 00:00:49,000 --> 00:00:51,640 Speaker 1: you a busy signal, pick up the phone and call 14 00:00:51,720 --> 00:00:54,680 Speaker 1: in the garage to orders are open. But I am 15 00:00:54,680 --> 00:00:58,360 Speaker 1: here to take your call at eight five five and 16 00:00:58,440 --> 00:01:07,840 Speaker 1: now he running. Yeah, I knew that was coming. Uh hey, 17 00:01:07,880 --> 00:01:11,640 Speaker 1: look at me, Tom. I'm a big international star, Dear 18 00:01:11,800 --> 00:01:16,959 Speaker 1: Mr Ron, Mr Ron. Yeah, they apparently don't know you. 19 00:01:17,120 --> 00:01:20,040 Speaker 1: Wait minute, dear Mr Ron, and I hope I say 20 00:01:20,080 --> 00:01:22,760 Speaker 1: this name right. My name is Jelawi. I'm a big 21 00:01:22,760 --> 00:01:24,440 Speaker 1: fan of your show. I listen to you every day 22 00:01:24,440 --> 00:01:26,800 Speaker 1: on Apple Podcast right here on the other side of 23 00:01:26,800 --> 00:01:31,680 Speaker 1: the planet, Kingdom Saudi Arabia. I say, I say road trip. Wow, 24 00:01:32,240 --> 00:01:33,560 Speaker 1: what do you say, Tom? Come on, let's go do 25 00:01:33,600 --> 00:01:36,440 Speaker 1: a remote. So we'll do a remote in Saudi Arabia. 26 00:01:36,480 --> 00:01:39,120 Speaker 1: I think of the fun. We can get some free oil. Well, 27 00:01:40,200 --> 00:01:41,760 Speaker 1: I'm thinking we could go a TV and out in 28 00:01:41,800 --> 00:01:46,600 Speaker 1: the desert, so you know how far? How far? I 29 00:01:46,640 --> 00:01:51,400 Speaker 1: have a problem with mccr bones stock truck, zero modifications, 30 00:01:51,680 --> 00:01:53,600 Speaker 1: d seventy five miles on it and just broken in. 31 00:01:53,640 --> 00:01:55,720 Speaker 1: As you always say, this guy does listen to the show. 32 00:01:56,120 --> 00:01:58,400 Speaker 1: My problem is every time I pressed the brake pedal, 33 00:01:58,760 --> 00:02:00,640 Speaker 1: there's a sound that goes like me out like a 34 00:02:00,640 --> 00:02:02,360 Speaker 1: little cat, and would last as long as my foot 35 00:02:02,360 --> 00:02:04,200 Speaker 1: is pressing the brake pedal. It's important to mention that 36 00:02:04,280 --> 00:02:07,920 Speaker 1: sound goes away when pressing the brake pedal down. The 37 00:02:07,960 --> 00:02:10,919 Speaker 1: sound only comes when pressing down between one pressure around 38 00:02:10,919 --> 00:02:13,120 Speaker 1: the pedal. I checked the booster for any visible damage. 39 00:02:13,120 --> 00:02:15,200 Speaker 1: I don't think you're gonna see any gelowey and I 40 00:02:15,280 --> 00:02:17,400 Speaker 1: found no and found nothing. No fluid leak in the 41 00:02:17,400 --> 00:02:19,600 Speaker 1: break is functioning as it should. Local mechanics are betting 42 00:02:19,600 --> 00:02:21,920 Speaker 1: that the booster is bed, it needs to be replaced. However, 43 00:02:21,960 --> 00:02:23,880 Speaker 1: the sound is very close to the brake pedal itself 44 00:02:24,160 --> 00:02:26,440 Speaker 1: and can't be heard from outside the truck, only inside 45 00:02:26,440 --> 00:02:29,080 Speaker 1: the cab. AM I having some sort of a leak 46 00:02:29,440 --> 00:02:31,800 Speaker 1: in something causing this sound is becoming very annoying and 47 00:02:31,840 --> 00:02:33,560 Speaker 1: I can't stand it anymore. Sorry for the long message 48 00:02:33,560 --> 00:02:35,480 Speaker 1: that you can guide me with this one. Thanks so much. 49 00:02:35,520 --> 00:02:38,760 Speaker 1: Be well. Um yeah, absolutely listen. UM, let's let's break 50 00:02:38,760 --> 00:02:40,560 Speaker 1: it down and make it simple. But we know it's 51 00:02:40,560 --> 00:02:44,799 Speaker 1: a break booster vacuum plied. I'm gonna assume it's it's 52 00:02:44,840 --> 00:02:49,480 Speaker 1: a you know mc c R a USA version. Um, 53 00:02:49,639 --> 00:02:52,320 Speaker 1: something that's sold here that was brought there. Uh not, 54 00:02:52,320 --> 00:02:54,040 Speaker 1: not too much of a big difference, so I'm not 55 00:02:54,160 --> 00:02:56,760 Speaker 1: I'm not missing anything. UM. One thing to be aware 56 00:02:56,760 --> 00:02:58,640 Speaker 1: of depending upon when engine is in this and you 57 00:02:58,639 --> 00:03:00,760 Speaker 1: didn't mention that, I'm gonna assume whom this is the 58 00:03:00,760 --> 00:03:03,919 Speaker 1: brake system with the optional vacuum pump, because a lot 59 00:03:03,919 --> 00:03:07,080 Speaker 1: of them had the vacuum boost pump on there, so 60 00:03:07,160 --> 00:03:09,280 Speaker 1: it applies vacuum. If it does, that's good. What you 61 00:03:09,320 --> 00:03:12,359 Speaker 1: can do is, um, get a scan tool and go 62 00:03:12,400 --> 00:03:14,480 Speaker 1: in and look, you can look at pit values. It 63 00:03:14,520 --> 00:03:17,480 Speaker 1: will show you vacuum. It will show you a vacuum 64 00:03:17,639 --> 00:03:20,360 Speaker 1: state of the booster. So it will show you while 65 00:03:20,360 --> 00:03:23,160 Speaker 1: the engine sitting there idling, what sort of boost state 66 00:03:23,280 --> 00:03:25,480 Speaker 1: or what sort of vacuum state the booster is in. 67 00:03:26,400 --> 00:03:28,680 Speaker 1: And you can take that reading and then lightly press 68 00:03:28,720 --> 00:03:32,160 Speaker 1: on the pedal. Does do you see vacuum drop? Do 69 00:03:32,160 --> 00:03:35,480 Speaker 1: you see vacuum change? And what I would also try 70 00:03:35,560 --> 00:03:37,560 Speaker 1: is try this with the key on, engine off, so 71 00:03:37,600 --> 00:03:40,520 Speaker 1: you can read data, let the pump build the booster up, 72 00:03:41,120 --> 00:03:44,040 Speaker 1: and as you slowly apply, if you hold your foot 73 00:03:44,080 --> 00:03:47,760 Speaker 1: in that one position where it's making that cat like noise, 74 00:03:48,840 --> 00:03:54,000 Speaker 1: can you just watch the vacuum bleed off? Just all right, 75 00:03:54,360 --> 00:03:56,640 Speaker 1: because what that's telling me is it's bleeding vacuum and 76 00:03:56,680 --> 00:04:00,520 Speaker 1: it's likely the internal seal where the press rods through 77 00:04:00,560 --> 00:04:03,520 Speaker 1: to the break booster. And you know, it's the same 78 00:04:03,560 --> 00:04:06,840 Speaker 1: thing as it's just a vibrational noise. It's it's like 79 00:04:06,880 --> 00:04:10,320 Speaker 1: that blade of grass between your thumbs when you you know, 80 00:04:10,320 --> 00:04:13,480 Speaker 1: would blow through it on a summer day and you know, 81 00:04:13,520 --> 00:04:17,560 Speaker 1: make that vibrational sort of a sound. So you know, 82 00:04:17,600 --> 00:04:19,320 Speaker 1: you could try that. The other thing you could try 83 00:04:19,360 --> 00:04:23,760 Speaker 1: is disconnect the booster line going into the pump and 84 00:04:23,880 --> 00:04:27,240 Speaker 1: apply the break all right, does the nose? Is the 85 00:04:27,279 --> 00:04:29,440 Speaker 1: noise gone? If the noise is gone, and obviously you're 86 00:04:29,440 --> 00:04:32,159 Speaker 1: gonna have to plug the vacuum line going into the 87 00:04:32,160 --> 00:04:34,440 Speaker 1: booster because the truckle stall it won't run with the 88 00:04:34,480 --> 00:04:37,360 Speaker 1: line unplug. That's a big vacuum leak. Um. But you're 89 00:04:37,400 --> 00:04:41,880 Speaker 1: gonna find that if the noise is gone, and you 90 00:04:41,920 --> 00:04:44,800 Speaker 1: know it, it doesn't make the noise anymore as you 91 00:04:44,800 --> 00:04:47,400 Speaker 1: apply the pedal. That tells me there's no vacuum there, 92 00:04:47,400 --> 00:04:51,000 Speaker 1: there's no more through your fingers. It's it's a bad 93 00:04:51,040 --> 00:04:54,040 Speaker 1: booster and you know then you can you know, change 94 00:04:54,080 --> 00:04:57,920 Speaker 1: that in confidence. So, uh. The other thing you could try, 95 00:04:58,080 --> 00:05:01,920 Speaker 1: if we want to get a little crazier is um 96 00:05:02,640 --> 00:05:06,440 Speaker 1: bring up a scan tool watch on fuel trim. Does 97 00:05:06,480 --> 00:05:08,839 Speaker 1: fuel trim change when it starts to make the noise? 98 00:05:09,560 --> 00:05:12,720 Speaker 1: In theory, it's a noise, right, it's it's the booster itself. 99 00:05:12,839 --> 00:05:15,440 Speaker 1: Is the diaphragm is porous or the seal is failing, 100 00:05:15,480 --> 00:05:18,600 Speaker 1: it's it's pulling air and it sounds like where's fuel trim? 101 00:05:18,640 --> 00:05:20,240 Speaker 1: When you step on the pedal. If you can kind 102 00:05:20,240 --> 00:05:21,800 Speaker 1: of catch it in that sweet spot. We used to 103 00:05:21,839 --> 00:05:24,279 Speaker 1: use that all the time to find bad break boosters. 104 00:05:24,279 --> 00:05:28,080 Speaker 1: We would actually see a change in fuel trim and 105 00:05:28,360 --> 00:05:30,040 Speaker 1: you know, with a little bit of bottled propane, we 106 00:05:30,080 --> 00:05:33,600 Speaker 1: would shoot some propane around. You have to pick the bellows. 107 00:05:33,600 --> 00:05:36,280 Speaker 1: There's a there's usually a black bellows or some sort 108 00:05:36,320 --> 00:05:38,280 Speaker 1: of a bellows protective seal over the end where the 109 00:05:38,279 --> 00:05:40,680 Speaker 1: push rod goes into the booster in the firewall. But 110 00:05:40,720 --> 00:05:43,600 Speaker 1: we pull that bellows back, shoot a little propane up 111 00:05:43,600 --> 00:05:45,599 Speaker 1: in there while we're stepping on the brake pedal holding 112 00:05:45,600 --> 00:05:47,920 Speaker 1: it in the right spot, watching on a scan tool. 113 00:05:47,960 --> 00:05:50,640 Speaker 1: If we see fuel trim change as a result of 114 00:05:50,680 --> 00:05:54,040 Speaker 1: propane induction, we know the boosters leaking and it's drawing 115 00:05:54,080 --> 00:05:56,280 Speaker 1: it right up the booster line and into the engine. 116 00:05:56,320 --> 00:05:58,440 Speaker 1: So um, you know, just a couple of things you 117 00:05:58,440 --> 00:05:59,560 Speaker 1: can do there, And I think that's that hard of 118 00:05:59,560 --> 00:06:02,359 Speaker 1: a problem to fix, just you know, think of it 119 00:06:02,400 --> 00:06:04,160 Speaker 1: outside the box. If you think it's the booster, how 120 00:06:04,160 --> 00:06:06,480 Speaker 1: would you prove the booster bad even though the brakes 121 00:06:06,480 --> 00:06:10,559 Speaker 1: seem to be working. You know, traditionally we see boosters fail, 122 00:06:11,839 --> 00:06:13,479 Speaker 1: you know, to the point that they just stopped working. 123 00:06:13,480 --> 00:06:15,599 Speaker 1: It's it's a yes or no proposition. This one just 124 00:06:15,640 --> 00:06:17,400 Speaker 1: for whatever reason, is right on the borderline and it 125 00:06:17,440 --> 00:06:19,239 Speaker 1: may take a while. The other thing to be aware 126 00:06:19,240 --> 00:06:21,839 Speaker 1: of is I just realized too, is if this has 127 00:06:21,880 --> 00:06:25,359 Speaker 1: the brake booster pump, the break booster vacuum pump, the 128 00:06:25,440 --> 00:06:29,720 Speaker 1: booster pump could be bad and it's pulling oil out 129 00:06:29,720 --> 00:06:31,880 Speaker 1: of the engine, allowing oil to pass through the pump 130 00:06:32,240 --> 00:06:35,000 Speaker 1: and into the brake booster. The brake boosters bad because 131 00:06:35,000 --> 00:06:37,200 Speaker 1: it's diluted with oil. So you know, when you take 132 00:06:37,200 --> 00:06:39,839 Speaker 1: the booster off, you know, turn it upside down, you know, 133 00:06:39,880 --> 00:06:42,000 Speaker 1: through the whole shake at the senior oil residue in there. 134 00:06:42,040 --> 00:06:45,120 Speaker 1: You've got oil residuing the booster. You've probably got the 135 00:06:45,240 --> 00:06:48,680 Speaker 1: small brake booster pump itself. UM. You know that that 136 00:06:48,760 --> 00:06:52,359 Speaker 1: supplies are builds additional vacuum. That break booster pump for 137 00:06:52,360 --> 00:06:55,640 Speaker 1: the booster is failed. UM at the very least a 138 00:06:55,680 --> 00:06:57,760 Speaker 1: bad check belt. But usually we put booster pumps on 139 00:06:57,760 --> 00:07:00,360 Speaker 1: it just to be complete. So couple of things that 140 00:07:00,440 --> 00:07:03,360 Speaker 1: go for UM. And that's it. That's all I got 141 00:07:03,440 --> 00:07:05,880 Speaker 1: to Lowie, So give me another email or give us 142 00:07:05,880 --> 00:07:07,520 Speaker 1: a call. We left I wonder what time that is 143 00:07:07,560 --> 00:07:10,200 Speaker 1: in Saudi Arabia that the show is. You know, we're 144 00:07:10,240 --> 00:07:14,160 Speaker 1: live on the network Saturdays two to four, and um, 145 00:07:14,320 --> 00:07:17,760 Speaker 1: well we're not Saudi Arabia, Australia, you know. And I 146 00:07:17,840 --> 00:07:20,880 Speaker 1: talked to I couldn't remember. It took me a while 147 00:07:20,960 --> 00:07:23,400 Speaker 1: to remember Dr Richard mckinn. I hadn't heard from him 148 00:07:23,400 --> 00:07:25,160 Speaker 1: in a while, and I remembered Richard. I had to 149 00:07:25,160 --> 00:07:28,000 Speaker 1: think of his last name, and I reached out to 150 00:07:28,080 --> 00:07:30,559 Speaker 1: him by email the other day. He's doing well. He's 151 00:07:30,800 --> 00:07:35,240 Speaker 1: he's building prototype parts for his car because uh, they're 152 00:07:35,320 --> 00:07:37,120 Speaker 1: short of break parts. I forget what it was. It 153 00:07:37,200 --> 00:07:41,080 Speaker 1: was some British exotic something. Um, but he's building brake 154 00:07:41,160 --> 00:07:43,120 Speaker 1: calipers there. And you know, I have to find his 155 00:07:43,160 --> 00:07:44,880 Speaker 1: email and read it because I love the way he writes. 156 00:07:44,920 --> 00:07:47,440 Speaker 1: It's just you know, on their on their machinery and 157 00:07:47,480 --> 00:07:50,120 Speaker 1: the way that he describes it and stuff. But you know, 158 00:07:50,160 --> 00:07:52,400 Speaker 1: look at us, it's an international show. Let's pull over 159 00:07:52,440 --> 00:07:54,119 Speaker 1: and take a quick pause before we go to the phones, 160 00:07:54,120 --> 00:07:57,920 Speaker 1: which are lit up at zero zero, and get there. 161 00:07:58,200 --> 00:07:59,840 Speaker 1: Get our business out of the way. I'm runing any 162 00:07:59,880 --> 00:08:11,320 Speaker 1: in the car. Doctor. I'll return right after this. What's 163 00:08:11,360 --> 00:08:13,400 Speaker 1: more fun than listening to Ron Andady in the car 164 00:08:13,480 --> 00:08:16,640 Speaker 1: doctor and getting that car fixed? Right? A five five 165 00:08:16,960 --> 00:08:21,320 Speaker 1: zero zero zero, Give Ron a call? Now back to Ron. Hey, 166 00:08:21,400 --> 00:08:23,400 Speaker 1: let's get over to Ray in Vegas. Oh eight dodged 167 00:08:23,400 --> 00:08:25,440 Speaker 1: the code in an intermittent no crank. Very Welcome to 168 00:08:25,480 --> 00:08:29,160 Speaker 1: the car doctor, sir, How can I help Hi? Good morning? 169 00:08:30,360 --> 00:08:37,120 Speaker 1: All right? Well we we just it. It'll it'll, it'll 170 00:08:37,440 --> 00:08:42,280 Speaker 1: just intermitally it'll start up, and then and then it won't. 171 00:08:42,520 --> 00:08:44,959 Speaker 1: Then for a while it won't start up. And now 172 00:08:45,000 --> 00:08:48,840 Speaker 1: we're at the point where, um, if we jump started, 173 00:08:49,320 --> 00:08:52,400 Speaker 1: it starts and goes down the road. We had the 174 00:08:52,400 --> 00:08:56,400 Speaker 1: battery and the alternator checked out and they were, you know, 175 00:08:56,520 --> 00:08:59,080 Speaker 1: doing what they're supposed to, and then we're up to charge. 176 00:08:59,280 --> 00:09:03,480 Speaker 1: Well when you when you say it doesn't start? Uh, Ray, 177 00:09:03,679 --> 00:09:06,040 Speaker 1: is it? Is it? There's no crank. It's no crank. 178 00:09:06,080 --> 00:09:10,000 Speaker 1: You turn the key and what happens? You have dash lights, 179 00:09:10,080 --> 00:09:13,280 Speaker 1: but the engine doesn't turn over. The starter makes no sound, 180 00:09:13,679 --> 00:09:18,599 Speaker 1: or you have no dashlights nothing. The dashlights come on 181 00:09:18,760 --> 00:09:21,320 Speaker 1: like you said that, the dashlights come on, but the 182 00:09:21,360 --> 00:09:25,840 Speaker 1: engine just there's no cranking sound. And we did have 183 00:09:25,920 --> 00:09:28,480 Speaker 1: a we did have a starter put in. We bought 184 00:09:28,480 --> 00:09:32,080 Speaker 1: it one of the auto parts stores and had an 185 00:09:32,360 --> 00:09:35,520 Speaker 1: acquaintance put the starter in for us, and that worked 186 00:09:35,559 --> 00:09:40,080 Speaker 1: for a little while, and then the intermittent thing started again. So, 187 00:09:40,640 --> 00:09:43,280 Speaker 1: you know, I'm kind of a you know, I'm getting older, 188 00:09:43,320 --> 00:09:45,400 Speaker 1: I'm getting I don't think the word is lazy. I 189 00:09:45,400 --> 00:09:48,200 Speaker 1: think i'd like to think I'm getting smarter. Um if 190 00:09:48,240 --> 00:09:51,360 Speaker 1: I'm chasing and intermittent and intermittent, no crank on something 191 00:09:51,960 --> 00:09:55,240 Speaker 1: all right? And dashlights are good and I verified and 192 00:09:55,320 --> 00:09:57,920 Speaker 1: listen to what I say. I've verified good clean connections 193 00:09:57,960 --> 00:10:01,880 Speaker 1: at the battery both sides, and I verify that I've 194 00:10:01,920 --> 00:10:04,440 Speaker 1: got a good clean ground at the engine block and 195 00:10:04,480 --> 00:10:07,760 Speaker 1: the chassis. Uh, you know, in New Jersey and oh eight, 196 00:10:07,800 --> 00:10:10,360 Speaker 1: Dakota would be you know, we could carry it around 197 00:10:10,400 --> 00:10:11,839 Speaker 1: in a thimble in our pocket because it would have 198 00:10:11,920 --> 00:10:14,120 Speaker 1: rusted our way by now. So in Vegas, I'm not 199 00:10:14,160 --> 00:10:17,600 Speaker 1: sure what the corotious corrosa factor is, but just as 200 00:10:17,600 --> 00:10:19,079 Speaker 1: long as there's not a lot of rust and it's 201 00:10:19,120 --> 00:10:22,480 Speaker 1: not getting crunchy. I'm just always cautious on older Chrysler's, 202 00:10:22,559 --> 00:10:26,080 Speaker 1: especially Dakotas. You know what sort of shape is chassis 203 00:10:26,080 --> 00:10:28,199 Speaker 1: and ground and things like that. And so because we 204 00:10:28,200 --> 00:10:30,560 Speaker 1: always think of power, we never think of ground. So 205 00:10:30,640 --> 00:10:32,559 Speaker 1: I just want to verify good power of good ground, 206 00:10:32,559 --> 00:10:36,000 Speaker 1: good connections, voltage drop things and and a volta drop 207 00:10:36,040 --> 00:10:37,680 Speaker 1: is just a fancy way of saying I want to 208 00:10:37,679 --> 00:10:41,080 Speaker 1: make sure that each circuit regarding the starter can handle 209 00:10:41,080 --> 00:10:46,000 Speaker 1: the load it's assigned, all right, So if they've done 210 00:10:46,000 --> 00:10:47,880 Speaker 1: any sort of testing for that, the next thing I'm 211 00:10:47,880 --> 00:10:51,880 Speaker 1: gonna do is down at the starter. There's a you know, 212 00:10:51,920 --> 00:10:55,560 Speaker 1: because this is intermittent, there's a yellow light gray wire 213 00:10:56,160 --> 00:11:00,160 Speaker 1: that's the solenoid feed. When you when you took when 214 00:11:00,160 --> 00:11:03,040 Speaker 1: you turn the key to onto crank, when you apply 215 00:11:03,120 --> 00:11:07,760 Speaker 1: to crank, all right, the engine computer, the PCM, grounds 216 00:11:08,600 --> 00:11:13,319 Speaker 1: the dark green orange wire leading into the underhood integrated 217 00:11:13,320 --> 00:11:16,280 Speaker 1: power module, and it then closes the relay for the 218 00:11:16,320 --> 00:11:20,000 Speaker 1: starter and applies power out to the yellow I want 219 00:11:20,000 --> 00:11:22,480 Speaker 1: to know if that yellow is hot, if that yellow 220 00:11:22,520 --> 00:11:28,240 Speaker 1: shows battery voltage when it doesn't crank, depending upon where 221 00:11:28,280 --> 00:11:31,600 Speaker 1: you've made your test point, that tells me that it's 222 00:11:31,600 --> 00:11:34,280 Speaker 1: got power to the starter. The starter is just not cranking. 223 00:11:34,280 --> 00:11:36,920 Speaker 1: Now I'm thinking I've got a bad new starter, which 224 00:11:36,960 --> 00:11:40,080 Speaker 1: is possible, or I'm back to I've got a ground problem, 225 00:11:40,120 --> 00:11:43,280 Speaker 1: a ground connection coming from the battery to the engine 226 00:11:43,280 --> 00:11:49,000 Speaker 1: block just because of age. Does that make sense? Yeah, 227 00:11:49,440 --> 00:11:53,240 Speaker 1: yeah I can. I can follow you logic. Not soone 228 00:11:53,280 --> 00:11:56,439 Speaker 1: said I I know a lot about it. But and 229 00:11:56,440 --> 00:11:59,000 Speaker 1: and and and The way I would do this, The 230 00:11:59,080 --> 00:12:01,920 Speaker 1: way I would do this is I would get out 231 00:12:01,960 --> 00:12:04,199 Speaker 1: to do you have an auto zone by you in Vegas? 232 00:12:04,640 --> 00:12:07,240 Speaker 1: Get out to your local auto zone, Okay, go over 233 00:12:07,240 --> 00:12:10,360 Speaker 1: to your local auto zone auto parts and tell them 234 00:12:10,440 --> 00:12:16,160 Speaker 1: you're looking for a one four side marker bulb. Alright, 235 00:12:17,280 --> 00:12:20,160 Speaker 1: market bulb. Yeah, it's just a it's just a real simple, 236 00:12:20,960 --> 00:12:24,680 Speaker 1: two single filament, two pronged bulb. You'll understand when you 237 00:12:24,760 --> 00:12:27,240 Speaker 1: see it. Um that they I mean, my gosh, the 238 00:12:27,240 --> 00:12:30,400 Speaker 1: manufacturers used it in you know how many millions of cars. 239 00:12:30,440 --> 00:12:32,920 Speaker 1: It's gonna be common. They'll have it in their electrical 240 00:12:32,960 --> 00:12:36,760 Speaker 1: connector uh section because auto zone has all this stuff 241 00:12:37,280 --> 00:12:40,199 Speaker 1: and it will allow you to What I want you 242 00:12:40,280 --> 00:12:43,280 Speaker 1: to do is I want somebody to wire that bulb 243 00:12:44,120 --> 00:12:48,920 Speaker 1: into that yellow gray wire and then I want that 244 00:12:49,200 --> 00:12:50,560 Speaker 1: you know, the neat thing would be as if they 245 00:12:50,559 --> 00:12:52,880 Speaker 1: could figure out how to get that up into what 246 00:12:52,960 --> 00:12:54,840 Speaker 1: I would do is I would either put it, you know, 247 00:12:54,960 --> 00:12:57,040 Speaker 1: put it between so it sticks out between the hood 248 00:12:57,080 --> 00:12:58,840 Speaker 1: and the chassis. Close the hoods and now the bulb 249 00:12:58,880 --> 00:13:02,000 Speaker 1: is just sort of sitting there, okay. Or if they could, 250 00:13:02,040 --> 00:13:04,319 Speaker 1: if they could get it into the passenger compartments somehow 251 00:13:04,400 --> 00:13:08,240 Speaker 1: run it through a door jam. All right, So every 252 00:13:08,240 --> 00:13:10,599 Speaker 1: time you go to start the car, that bulb is 253 00:13:10,600 --> 00:13:16,960 Speaker 1: gonna light right right and then and then you so 254 00:13:17,120 --> 00:13:21,320 Speaker 1: you now know what good looks like. And and when 255 00:13:21,520 --> 00:13:24,280 Speaker 1: it doesn't light, you're gonna go, Okay, it didn't crank. 256 00:13:25,160 --> 00:13:28,800 Speaker 1: The bulb didn't light. Now I know the starter is good. 257 00:13:28,840 --> 00:13:30,880 Speaker 1: The wire down to the starter is likely good. My 258 00:13:30,960 --> 00:13:34,040 Speaker 1: problem is that way in the circuit. And that's all 259 00:13:34,040 --> 00:13:35,640 Speaker 1: we're trying to do. We're trying to figure out which 260 00:13:35,640 --> 00:13:38,120 Speaker 1: direction the problem is. Otherwise we're just guessing. We're gonna 261 00:13:38,160 --> 00:13:42,040 Speaker 1: keep swapping parts. Now, if you really want to get fancy, okay, 262 00:13:42,080 --> 00:13:45,079 Speaker 1: and I've done this by two one n four connectors, 263 00:13:45,800 --> 00:13:47,840 Speaker 1: you're gonna put one on the yellow wire that's the 264 00:13:47,880 --> 00:13:52,280 Speaker 1: solenoid feed. You're gonna put one on the dark green 265 00:13:52,360 --> 00:13:55,520 Speaker 1: orange wire, which is the ground for the starter relay, 266 00:13:55,600 --> 00:13:59,040 Speaker 1: and you're gonna put him side by side. Now, watch 267 00:13:59,120 --> 00:14:02,240 Speaker 1: this trick you're gonna make. You're gonna make the yellow 268 00:14:02,280 --> 00:14:05,240 Speaker 1: wire for the starter solenoid a white bulb, and you're 269 00:14:05,240 --> 00:14:12,280 Speaker 1: gonna make the ground leg the orange bulb. Okay, And 270 00:14:12,360 --> 00:14:14,400 Speaker 1: now when it doesn't start, all I would if you 271 00:14:14,400 --> 00:14:16,040 Speaker 1: were at the shop. Now, when it doesn't start, all 272 00:14:16,040 --> 00:14:17,760 Speaker 1: I have to ask is you know I just have 273 00:14:17,800 --> 00:14:20,920 Speaker 1: to go ray? Which bulb didn't light? You'll tell me neither. 274 00:14:21,280 --> 00:14:23,560 Speaker 1: Now I know the PCM is an applying ground. And 275 00:14:23,560 --> 00:14:25,480 Speaker 1: now I can go look at the circuit. If you 276 00:14:25,520 --> 00:14:28,360 Speaker 1: tell me that you had the orange bulblit, that tells 277 00:14:28,400 --> 00:14:30,960 Speaker 1: me we had ground. Either we've got a bad relay 278 00:14:31,080 --> 00:14:33,280 Speaker 1: or we've got a problem inside the integrated. See how 279 00:14:33,280 --> 00:14:38,120 Speaker 1: I'm backtracking. I'm working my way through the circuit, you know. 280 00:14:38,200 --> 00:14:39,880 Speaker 1: And all I'm doing is I'm just using a couple 281 00:14:39,880 --> 00:14:43,160 Speaker 1: of bulbs. That's because this is intermittent. That's what makes it. 282 00:14:43,280 --> 00:14:46,440 Speaker 1: That's what makes it harder. So what I what I'm 283 00:14:46,480 --> 00:14:49,240 Speaker 1: offering to you as a method of your basically carrying 284 00:14:49,280 --> 00:14:53,000 Speaker 1: the mechanic with you, all right, you know it's it's 285 00:14:53,040 --> 00:14:55,480 Speaker 1: it's just simple. If and I'll tell you what if 286 00:14:55,480 --> 00:14:57,120 Speaker 1: the mechanic you're going to is do you have a 287 00:14:57,160 --> 00:15:03,480 Speaker 1: regular mechanic? You go see, well, yes, yes. And sometimes 288 00:15:03,560 --> 00:15:06,600 Speaker 1: we get help from you know, like a neighbor's friend 289 00:15:06,640 --> 00:15:10,320 Speaker 1: of a neighbor. We we go to a stop and 290 00:15:10,960 --> 00:15:15,440 Speaker 1: they start they want to fix everything from one end 291 00:15:15,480 --> 00:15:18,960 Speaker 1: of the truck to the other. Right. Yeah, we're not 292 00:15:19,000 --> 00:15:21,240 Speaker 1: saying to do that either, just you know, and that's 293 00:15:21,240 --> 00:15:23,360 Speaker 1: not to say that there is there isn't another condition 294 00:15:23,360 --> 00:15:25,920 Speaker 1: in this truck that's not creating this. Like I said, 295 00:15:25,960 --> 00:15:28,680 Speaker 1: this is a fifteen year old Chrysler. I'm always concerned 296 00:15:28,720 --> 00:15:31,440 Speaker 1: about rust and corrosion. I've got a few of these 297 00:15:31,480 --> 00:15:33,520 Speaker 1: running around that you know, I need a technis shot 298 00:15:33,560 --> 00:15:36,520 Speaker 1: every time I look at them. So it's, uh, you know, 299 00:15:36,560 --> 00:15:39,040 Speaker 1: it's a it's a concern. But you know, what I'm 300 00:15:39,080 --> 00:15:41,040 Speaker 1: trying to offer you is if somebody were to look 301 00:15:41,040 --> 00:15:43,240 Speaker 1: at a wiring diagram just for the starting system, they 302 00:15:43,240 --> 00:15:46,280 Speaker 1: would see this. It's break that you know, there's there's 303 00:15:46,360 --> 00:15:49,360 Speaker 1: there's roughly six wires in the starter circuit for this vehicle. 304 00:15:49,400 --> 00:15:51,200 Speaker 1: This is a pretty simple truck back in the day. 305 00:15:51,520 --> 00:15:54,160 Speaker 1: What I'm trying to do is using that one bulb 306 00:15:54,160 --> 00:15:56,120 Speaker 1: and socket set up, you're gonna get from moto zone 307 00:15:56,600 --> 00:16:00,240 Speaker 1: as you're going to now be able to pinpoint what 308 00:16:00,280 --> 00:16:05,240 Speaker 1: wire isn't sending signal at the time of failure, and 309 00:16:05,240 --> 00:16:09,440 Speaker 1: and and a real mechanic, a diagnostician would be able 310 00:16:09,440 --> 00:16:11,200 Speaker 1: to sit there and go, well, let's see I had power, 311 00:16:11,240 --> 00:16:13,400 Speaker 1: I didn't have ground. Where's the ground leg go follow 312 00:16:13,440 --> 00:16:16,800 Speaker 1: that out and and work their way through the circuit. So, 313 00:16:17,000 --> 00:16:18,880 Speaker 1: because the way you're going, you're just gonna replace every 314 00:16:18,880 --> 00:16:20,400 Speaker 1: port in the truck and tell you to get tired 315 00:16:20,440 --> 00:16:22,240 Speaker 1: of it, sell the truck, or just find the problem. 316 00:16:22,640 --> 00:16:34,480 Speaker 1: Gets to be expensive exactly, Okay, one night, bab you 317 00:16:34,520 --> 00:16:36,520 Speaker 1: know they're cheap. It's probably gonna I bet you it's 318 00:16:36,560 --> 00:16:39,960 Speaker 1: fifteen dollars in material. And you know, get yourself a 319 00:16:40,000 --> 00:16:43,800 Speaker 1: wiring diagram, get yourself a copy of of the circuit um. 320 00:16:43,840 --> 00:16:46,360 Speaker 1: If you can't find a wiring diagram for this truck, 321 00:16:46,400 --> 00:16:48,160 Speaker 1: you shoot me an email and I'll email it back 322 00:16:48,160 --> 00:16:52,280 Speaker 1: to Iran at Car Doctor show dot com. And you 323 00:16:52,320 --> 00:16:55,880 Speaker 1: know they can wire this in and understand the theory 324 00:16:55,880 --> 00:16:59,520 Speaker 1: behind what we're trying to do. Well, well, why does 325 00:16:59,600 --> 00:17:02,040 Speaker 1: it like, why does it start when you put a 326 00:17:02,120 --> 00:17:03,960 Speaker 1: jumper on it? When you put it like when you 327 00:17:04,040 --> 00:17:06,080 Speaker 1: jump it. That's what makes me think we've got a 328 00:17:06,080 --> 00:17:09,000 Speaker 1: bad ground or connection somewhere. Remember the first part of 329 00:17:09,040 --> 00:17:11,840 Speaker 1: this conversation. Remember the first part of this conversation was 330 00:17:11,880 --> 00:17:14,480 Speaker 1: the first thing I said to you. Making sure battery 331 00:17:14,480 --> 00:17:16,800 Speaker 1: connections and cables are good, clean and tight, and you 332 00:17:16,840 --> 00:17:23,680 Speaker 1: have a good ground at both ends. That's kay, right, So, um, 333 00:17:23,720 --> 00:17:26,000 Speaker 1: you know it's it's fifteen years old. I can't tell 334 00:17:26,000 --> 00:17:27,960 Speaker 1: you how many fifteen year old vehicles I've worked on 335 00:17:28,000 --> 00:17:31,440 Speaker 1: in my lifetime that had a problem like this, and 336 00:17:31,440 --> 00:17:33,720 Speaker 1: and the person would say, yeah, but you know it's 337 00:17:33,760 --> 00:17:35,399 Speaker 1: it's it was never like this. And then we found 338 00:17:35,440 --> 00:17:37,359 Speaker 1: out three years ago somebody put an engine in the 339 00:17:37,400 --> 00:17:40,480 Speaker 1: truck before they bought it, and the ground cable for 340 00:17:40,520 --> 00:17:43,880 Speaker 1: the battery is attached to a painted block. Nobody ever 341 00:17:43,880 --> 00:17:46,080 Speaker 1: cleaned the block properly, and every once in a while 342 00:17:46,119 --> 00:17:49,080 Speaker 1: it has poor connectivity and poor contact and it goes 343 00:17:49,119 --> 00:17:51,280 Speaker 1: into this no crank condition, which is why they sold 344 00:17:51,280 --> 00:17:52,960 Speaker 1: the truck in the first place, and nobody could figure 345 00:17:53,000 --> 00:17:56,919 Speaker 1: it out. I don't know, I just just just saying, Ray, 346 00:17:57,080 --> 00:18:00,920 Speaker 1: So all right, sir, thank you. So I'm really glad 347 00:18:00,960 --> 00:18:03,960 Speaker 1: I called I listened to your show a few times. 348 00:18:04,160 --> 00:18:05,760 Speaker 1: You know, on the weekend, I'll be turned into the 349 00:18:05,800 --> 00:18:10,439 Speaker 1: dial and and I kind of somebody calls and the 350 00:18:10,480 --> 00:18:14,040 Speaker 1: way you you helped talk people. That's what I'm here for. 351 00:18:14,160 --> 00:18:19,680 Speaker 1: Brother thought. I'm glad you did. Thank you, sir. I'm 352 00:18:19,720 --> 00:18:21,639 Speaker 1: glad you stopped at this point on the dial. And 353 00:18:21,640 --> 00:18:22,840 Speaker 1: I was glad to be able to speak with you. 354 00:18:22,880 --> 00:18:24,760 Speaker 1: And don't forget email me if you need more round 355 00:18:24,760 --> 00:18:26,879 Speaker 1: at Car Doctor show dot com. I'll be back right 356 00:18:26,920 --> 00:18:51,080 Speaker 1: after this. Don't go away back coming back then, all right, thanks, 357 00:18:53,240 --> 00:18:55,399 Speaker 1: welcome back running in the Car Doctor. Here, let's go 358 00:18:55,440 --> 00:18:57,800 Speaker 1: over to let's go over Geane and Georgia. Oh for 359 00:18:57,920 --> 00:19:00,160 Speaker 1: a Nissan Frontier. Gene, welcome to the Car Doctor. Sure, 360 00:19:00,160 --> 00:19:03,280 Speaker 1: how can I help? Hi? How you doing? Enjoy your show? 361 00:19:03,400 --> 00:19:06,520 Speaker 1: And I thank you for what you do. Uh yeah, 362 00:19:06,800 --> 00:19:09,359 Speaker 1: what I what I got a problem with is I 363 00:19:09,359 --> 00:19:12,080 Speaker 1: got a two thousand and four Nichean Frontier two point 364 00:19:12,119 --> 00:19:14,720 Speaker 1: four Leader x he. I got a code of P 365 00:19:14,880 --> 00:19:17,840 Speaker 1: zero four twenty which I did a diagnostic on and 366 00:19:17,920 --> 00:19:21,000 Speaker 1: I cleared. And then I want to take the emissions 367 00:19:21,000 --> 00:19:24,760 Speaker 1: test and uh, it tasted for everything except for readiness, 368 00:19:24,800 --> 00:19:28,119 Speaker 1: which I think is uh the time you got to 369 00:19:28,240 --> 00:19:31,119 Speaker 1: drive or something like that. After I cleared the code, 370 00:19:31,640 --> 00:19:34,240 Speaker 1: the check engine light did not come on. So uh, 371 00:19:34,600 --> 00:19:36,960 Speaker 1: from what it says, I think it's got a problem 372 00:19:37,040 --> 00:19:41,159 Speaker 1: with a catalytic converter or the oxygen sensors. And I 373 00:19:41,200 --> 00:19:46,120 Speaker 1: believe I have two oxygen sensors on a vehicle, and 374 00:19:46,320 --> 00:19:50,720 Speaker 1: I was thinking about changing out the oxygen sensor. Uh, 375 00:19:51,000 --> 00:19:54,520 Speaker 1: I guess it would be the one nearest the catalytic converter. Okay, 376 00:19:54,640 --> 00:19:57,399 Speaker 1: let's let's let's back up. Let's understand the code. Alright, Jean, 377 00:19:57,560 --> 00:20:00,680 Speaker 1: Let's let's understand what they're talking about. So a P 378 00:20:00,920 --> 00:20:05,159 Speaker 1: zero four twenty is an indication that the onboard computer. 379 00:20:05,240 --> 00:20:07,480 Speaker 1: We're gonna talk generically because this this, this is a 380 00:20:07,520 --> 00:20:09,560 Speaker 1: generic code. It applies to every vehicle out there on 381 00:20:09,560 --> 00:20:14,440 Speaker 1: the road. Since is the catalytic converter isn't meeting its 382 00:20:14,480 --> 00:20:17,800 Speaker 1: efficiency requirements. A catalytic converter, by law, by the Clean 383 00:20:17,840 --> 00:20:22,000 Speaker 1: Air Act of mandates that depended upon your making model 384 00:20:22,000 --> 00:20:25,320 Speaker 1: of vehicle, it has to reduce its emissions after the 385 00:20:25,359 --> 00:20:27,480 Speaker 1: cat comes in at one level and goes out the 386 00:20:27,520 --> 00:20:31,360 Speaker 1: other level by a minimum of seventy And they look 387 00:20:31,400 --> 00:20:35,040 Speaker 1: for an eight percent reduction in in harmful pollutants from 388 00:20:35,040 --> 00:20:36,719 Speaker 1: one end of the cat to the other. And they 389 00:20:36,760 --> 00:20:39,639 Speaker 1: do this through a process of internal um heat and 390 00:20:39,680 --> 00:20:43,520 Speaker 1: temperature and catalytic change. That's why it's a catalytic converter 391 00:20:43,720 --> 00:20:45,120 Speaker 1: that we're not going to go into here. We've only 392 00:20:45,119 --> 00:20:48,080 Speaker 1: got a half hour lifting today's show. Uh so that 393 00:20:48,240 --> 00:20:51,800 Speaker 1: be that. That that being said, all right, emissions come 394 00:20:51,840 --> 00:20:54,679 Speaker 1: in the front. I'm sorry, Exhaust comes in the front. 395 00:20:54,760 --> 00:20:58,000 Speaker 1: Exhaust goes out the back of the cat. The forward 396 00:20:58,040 --> 00:21:02,240 Speaker 1: oxygen sensor report, it's how much oxygen is going into 397 00:21:02,280 --> 00:21:07,000 Speaker 1: the cat. The after the cat oxygen sensor is reporting 398 00:21:07,000 --> 00:21:10,280 Speaker 1: how much oxygen comes out of the cat. I don't 399 00:21:10,280 --> 00:21:13,080 Speaker 1: remember much from high school chemistry except getting yelled out 400 00:21:13,119 --> 00:21:14,439 Speaker 1: all the time because I was always trying to make 401 00:21:14,440 --> 00:21:16,679 Speaker 1: those weird test tube experiments and blowing things up when 402 00:21:16,680 --> 00:21:18,320 Speaker 1: I wasn't supposed to be. But I do remember that 403 00:21:18,359 --> 00:21:21,720 Speaker 1: oxygen was a vital part of most kept temperature and 404 00:21:21,800 --> 00:21:26,520 Speaker 1: chemical reactions and catalytic changes. So they're using the presence 405 00:21:26,560 --> 00:21:29,760 Speaker 1: of and then the lack of oxygen to show state 406 00:21:29,800 --> 00:21:32,360 Speaker 1: of change or state of efficiency of the cat. You're 407 00:21:32,400 --> 00:21:37,200 Speaker 1: with me, so P zero four twenty could be a 408 00:21:37,320 --> 00:21:40,000 Speaker 1: faulty O two censor, but it should also see you know, 409 00:21:40,160 --> 00:21:44,879 Speaker 1: two centsor full all right, the rule of thumb, And 410 00:21:44,920 --> 00:21:47,000 Speaker 1: it's not cast in stone because every car is a 411 00:21:47,080 --> 00:21:49,720 Speaker 1: little different. But the rule of thumb is that they change. 412 00:21:49,760 --> 00:21:53,160 Speaker 1: They test every sensor on every vehicle four to six 413 00:21:53,320 --> 00:21:58,880 Speaker 1: different ways. Think about that, all right, If if they 414 00:21:58,920 --> 00:22:02,080 Speaker 1: could test you know, if if if they're looking for 415 00:22:02,280 --> 00:22:04,439 Speaker 1: or looking at a bad oh, two centsor don't you 416 00:22:04,480 --> 00:22:06,960 Speaker 1: think they're more likely to say, hey, the O two 417 00:22:07,040 --> 00:22:10,280 Speaker 1: didn't meet its minimum requirement versus pick on the cat 418 00:22:11,960 --> 00:22:16,320 Speaker 1: right makes sense? Right? So that being said, what's going 419 00:22:16,400 --> 00:22:18,960 Speaker 1: on here? How does the catalytic converter work? Catalytic converter? 420 00:22:19,000 --> 00:22:21,239 Speaker 1: If you looked at the front O two censor. An 421 00:22:21,240 --> 00:22:24,680 Speaker 1: oxygen sensor is basically like the thermostat in your house. 422 00:22:25,240 --> 00:22:27,600 Speaker 1: You set the thermostat the seventy degrees, the heat comes 423 00:22:27,680 --> 00:22:30,359 Speaker 1: up them, the furnace shuts off, the heat goes down 424 00:22:30,640 --> 00:22:34,280 Speaker 1: the furnace. The the heat goes down. When the heat 425 00:22:34,280 --> 00:22:36,680 Speaker 1: reaches a certain point, the furnace comes back up. If 426 00:22:36,720 --> 00:22:39,119 Speaker 1: we looked at that on off action that the thermostat 427 00:22:39,200 --> 00:22:41,880 Speaker 1: was creating, If we looked at that as a voltage line, 428 00:22:41,880 --> 00:22:43,080 Speaker 1: it would be up and it would be down, and 429 00:22:43,119 --> 00:22:44,640 Speaker 1: it would be up and it would be down. Right, 430 00:22:45,840 --> 00:22:50,080 Speaker 1: So the forward OH two is seeing varying states of oxygen. 431 00:22:50,480 --> 00:22:53,120 Speaker 1: The voltage signal would always rise and fall up and down, 432 00:22:53,200 --> 00:22:56,480 Speaker 1: up and down, up and down. If the catalytic converter, 433 00:22:56,680 --> 00:23:01,840 Speaker 1: and a catalytic converter is designed chemically, it holds oxygen, 434 00:23:02,480 --> 00:23:04,800 Speaker 1: all right. I always say it this way, and nothing 435 00:23:04,840 --> 00:23:07,400 Speaker 1: against people that like to eat Hero sandwiches, but it's 436 00:23:07,400 --> 00:23:08,800 Speaker 1: sort of like that guy who likes to sit at 437 00:23:08,800 --> 00:23:10,560 Speaker 1: the counter and eat a Hero sandwich until he can't 438 00:23:10,560 --> 00:23:13,480 Speaker 1: eat anymore, all right, he can, he can just eat, 439 00:23:13,560 --> 00:23:15,840 Speaker 1: neat and neat, and neat and neat. A catalytic converter 440 00:23:15,920 --> 00:23:18,760 Speaker 1: can just store oxygen and store oxygen and store oxygen. 441 00:23:19,080 --> 00:23:20,840 Speaker 1: And if we looked at a voltage signal out of 442 00:23:20,840 --> 00:23:24,280 Speaker 1: a downstream or after the CATO two centsor it would 443 00:23:24,280 --> 00:23:29,200 Speaker 1: be a steady high voltage you with me, so sooner 444 00:23:29,280 --> 00:23:31,119 Speaker 1: or later that that guy at the counter eating that 445 00:23:31,160 --> 00:23:35,119 Speaker 1: Italian Hero burps right, well, so so does the O 446 00:23:35,280 --> 00:23:39,520 Speaker 1: two censor. Because the catalytic converter reaches a peak efficiency max. 447 00:23:39,520 --> 00:23:41,880 Speaker 1: It just can't hold anymore, and it starts to give 448 00:23:41,920 --> 00:23:43,840 Speaker 1: up oxygen, and you would see the O two centsor 449 00:23:43,920 --> 00:23:47,479 Speaker 1: signal fall. The moment that oh two centsor signal falls, 450 00:23:47,760 --> 00:23:51,160 Speaker 1: the computer has calculated how long did he keep eating 451 00:23:51,160 --> 00:23:53,639 Speaker 1: the sandwich? He started eating it here, he ate it 452 00:23:53,680 --> 00:23:55,560 Speaker 1: for seven and a half seconds, and then he burped, 453 00:23:56,119 --> 00:23:59,000 Speaker 1: all right, And that's where the math comes from. That's 454 00:23:59,000 --> 00:24:02,960 Speaker 1: how it knows. So you know it's likely. This is 455 00:24:03,000 --> 00:24:06,200 Speaker 1: not an O two censor. This is likely the guy 456 00:24:06,240 --> 00:24:08,760 Speaker 1: at the counter can't eat the sandwich for seven seconds 457 00:24:08,760 --> 00:24:11,880 Speaker 1: like he's supposed to because some of his internal material 458 00:24:12,000 --> 00:24:17,720 Speaker 1: is worn away, or it's contaminated, or it's corroded. Does that. 459 00:24:17,800 --> 00:24:19,840 Speaker 1: I don't see the I'm sorry, I don't see the 460 00:24:19,840 --> 00:24:23,400 Speaker 1: old two centsor after the calid compared. I only see 461 00:24:23,440 --> 00:24:25,320 Speaker 1: it right in front of it. And there's one maybe 462 00:24:25,440 --> 00:24:28,640 Speaker 1: right at the near the the manifold, near the engine block. 463 00:24:28,760 --> 00:24:31,879 Speaker 1: Then you're looking at the wrong cat. There's there should 464 00:24:31,880 --> 00:24:33,959 Speaker 1: be there should then there could be two cats on 465 00:24:34,000 --> 00:24:37,359 Speaker 1: this car too. Okay, there has to be an O 466 00:24:37,440 --> 00:24:39,119 Speaker 1: two center in front of the cat. Has to be 467 00:24:39,880 --> 00:24:41,840 Speaker 1: there wasn't There is one in front but I don't 468 00:24:41,880 --> 00:24:43,560 Speaker 1: see one in the back. There has to be. There 469 00:24:43,560 --> 00:24:45,439 Speaker 1: has to be two o two centers in this vehicle. 470 00:24:46,240 --> 00:24:48,280 Speaker 1: I've never seen one where there wasn't that otherwise, how 471 00:24:48,320 --> 00:24:51,000 Speaker 1: would they otherwise there's no way to measure and show 472 00:24:51,000 --> 00:24:56,719 Speaker 1: efficiency for P zero four. So you're you're missing something. 473 00:24:57,160 --> 00:24:59,359 Speaker 1: There's gotta be there's gotta be a pre cat in 474 00:24:59,400 --> 00:25:03,439 Speaker 1: a postcat a two centsor on this vehicle, guaranteed. I 475 00:25:03,440 --> 00:25:05,439 Speaker 1: don't guarantee a lot. I think I saw was the 476 00:25:05,480 --> 00:25:07,719 Speaker 1: one right in front, and there's also right at the 477 00:25:08,800 --> 00:25:11,919 Speaker 1: If I open up the hood right it looks like 478 00:25:12,000 --> 00:25:14,800 Speaker 1: there's a sensor right there right well, then there then 479 00:25:14,840 --> 00:25:17,880 Speaker 1: your catalytic converter as part of your exhaust manifold, those 480 00:25:17,920 --> 00:25:21,960 Speaker 1: are your two censors. So there are two sensors. You're 481 00:25:22,000 --> 00:25:25,120 Speaker 1: just expecting to see them down on the pipe, right 482 00:25:25,160 --> 00:25:27,199 Speaker 1: I expect, Yeah, I've seen. I'm looking for them to 483 00:25:27,200 --> 00:25:30,480 Speaker 1: see the behind the catalytic converter. I only see one 484 00:25:30,480 --> 00:25:34,720 Speaker 1: in the front. Judging it from front to back. Wherever 485 00:25:34,760 --> 00:25:38,000 Speaker 1: that first oh two is the cat. The cat is 486 00:25:38,119 --> 00:25:40,520 Speaker 1: right after that, and this might be a manifold cat. 487 00:25:40,880 --> 00:25:44,199 Speaker 1: That second cat that you're seeing that there is no 488 00:25:44,400 --> 00:25:48,440 Speaker 1: two censor after it could be what we call an 489 00:25:48,560 --> 00:25:55,200 Speaker 1: unmonitored cat meaning they don't regulate it, they don't look 490 00:25:55,280 --> 00:25:57,719 Speaker 1: after it, they don't really care about it. They just 491 00:25:57,800 --> 00:25:59,760 Speaker 1: know it's there and it has to stay there. Otherwise 492 00:25:59,760 --> 00:26:03,679 Speaker 1: the icle is an emissions tamper. But you're you're the 493 00:26:03,720 --> 00:26:06,280 Speaker 1: point of where your catalytic converter is between that first 494 00:26:06,280 --> 00:26:09,639 Speaker 1: center and the second. That's just the way the law works. 495 00:26:10,200 --> 00:26:12,720 Speaker 1: It's there, you just don't see it. It's part of 496 00:26:12,720 --> 00:26:16,080 Speaker 1: the manifold. But it's there. Has to be there, or 497 00:26:16,160 --> 00:26:20,359 Speaker 1: the system has been modified. You're the original owner on 498 00:26:20,400 --> 00:26:25,400 Speaker 1: the truck. Okay, then you would know. Now as far 499 00:26:25,440 --> 00:26:29,200 Speaker 1: as the monitors are concerned, when you went to high school, 500 00:26:29,280 --> 00:26:35,679 Speaker 1: what was your worst subject? Uh? Probably English? Did you 501 00:26:35,720 --> 00:26:39,000 Speaker 1: take every test as long as as long as mom, 502 00:26:39,040 --> 00:26:41,560 Speaker 1: as long as mom made you go right? So, and 503 00:26:41,880 --> 00:26:46,840 Speaker 1: you completed every test? But did you pass every test? So? So, 504 00:26:47,119 --> 00:26:49,960 Speaker 1: The way a computer works is it runs its monitor. 505 00:26:49,960 --> 00:26:53,280 Speaker 1: It's runs its test on each individual component, catalytic converter, 506 00:26:53,359 --> 00:26:57,399 Speaker 1: evaporative emission, oh two centsor and so on down the line. 507 00:26:57,520 --> 00:27:00,320 Speaker 1: It runs a test on every component at some point 508 00:27:00,400 --> 00:27:02,920 Speaker 1: during the drive cycle. Operational use of the vehicle during 509 00:27:02,920 --> 00:27:07,280 Speaker 1: the course of the day. Okay. Now, at some point 510 00:27:07,640 --> 00:27:11,000 Speaker 1: that monitor meets the right conditions, right, Mrs Smith, put 511 00:27:11,040 --> 00:27:12,720 Speaker 1: the lights on in the room, the windows are open. 512 00:27:12,760 --> 00:27:14,520 Speaker 1: It was cool at you finished the test under the 513 00:27:14,600 --> 00:27:19,520 Speaker 1: right conditions. Right right now, you're catalytic converter test. You're 514 00:27:19,600 --> 00:27:22,399 Speaker 1: your your self test for the CAT. The monitor for 515 00:27:22,480 --> 00:27:26,520 Speaker 1: the CAT has not run because the conditions are not ideal, 516 00:27:28,119 --> 00:27:32,159 Speaker 1: all right. So until that CAT self test rungs, you 517 00:27:32,200 --> 00:27:34,399 Speaker 1: won't know if this CAT is efficient or if that 518 00:27:34,480 --> 00:27:37,679 Speaker 1: was a one time fluke of the failure. Now I'll 519 00:27:37,720 --> 00:27:39,480 Speaker 1: tell you how I get CAT monitors to run, or 520 00:27:39,520 --> 00:27:41,800 Speaker 1: I'll know for sure. The most common test is I 521 00:27:41,840 --> 00:27:46,240 Speaker 1: take it out on the highway to sixty no more. 522 00:27:46,640 --> 00:27:48,639 Speaker 1: I put it on cruise control, I go for a 523 00:27:48,720 --> 00:27:53,040 Speaker 1: nice steady drive, and I'll watch it on a scan tool. Okay, 524 00:27:53,440 --> 00:27:55,760 Speaker 1: And that puts the that puts the vehicle usually in 525 00:27:55,800 --> 00:28:00,000 Speaker 1: the right mode, the right operational position that it will 526 00:28:00,040 --> 00:28:02,639 Speaker 1: run the CAT monitor. Now you could have some You 527 00:28:02,680 --> 00:28:04,640 Speaker 1: could have a dirty catalytic converter too. If you want 528 00:28:04,640 --> 00:28:06,639 Speaker 1: to spend a couple of bucks and try something simple. 529 00:28:06,920 --> 00:28:09,880 Speaker 1: Do you have an auto zone by you go over 530 00:28:09,880 --> 00:28:16,440 Speaker 1: there and see if they have Berryman Emissions Pass Cleaner. Alright, Berryman, 531 00:28:16,880 --> 00:28:18,480 Speaker 1: all right, I'll get you the exact and yeah, it's 532 00:28:18,480 --> 00:28:22,199 Speaker 1: Berryman's Emissions Pass Protection. It's a heavy duty fuel system 533 00:28:22,240 --> 00:28:26,560 Speaker 1: cleaner that Berryman's makes that will clean injectors and take 534 00:28:26,640 --> 00:28:30,000 Speaker 1: valves and take runners and help clean up the catalytic converter. 535 00:28:30,240 --> 00:28:33,879 Speaker 1: If the catalytic converter has contaminant on it, that could 536 00:28:33,920 --> 00:28:36,679 Speaker 1: possibly help clean it up. No promises, but it's just 537 00:28:37,000 --> 00:28:39,479 Speaker 1: another method or another way to attack before you get 538 00:28:39,520 --> 00:28:42,040 Speaker 1: into a cat. Do you put that in the tank 539 00:28:42,120 --> 00:28:47,840 Speaker 1: in the gas tank? All right? Auto zone should have it, alright? 540 00:28:47,920 --> 00:28:52,600 Speaker 1: That code is it most probably the defective catalytic convertiment. 541 00:28:52,840 --> 00:28:56,120 Speaker 1: It's well, it could be a dirty cat. It's showing 542 00:28:56,120 --> 00:28:59,320 Speaker 1: you inefficiency of the catalytic converter. That's what it's showing you. 543 00:28:59,360 --> 00:29:02,520 Speaker 1: By definition, if you have an exhaust leak ahead of 544 00:29:02,560 --> 00:29:06,640 Speaker 1: the cat, you'll set that code. So everybody assumes a 545 00:29:06,680 --> 00:29:08,760 Speaker 1: P zero four twenty is always a bad cat. There 546 00:29:08,800 --> 00:29:11,520 Speaker 1: are other things that can cause it. It's common, but 547 00:29:11,600 --> 00:29:16,360 Speaker 1: it's not guaranteed. All right, Okay, I can tell you. 548 00:29:16,600 --> 00:29:18,000 Speaker 1: We'll tell you what sit tight A minute. Let me 549 00:29:18,080 --> 00:29:19,400 Speaker 1: let me pull over. Let me just take this quick 550 00:29:19,400 --> 00:29:21,200 Speaker 1: pause because we're gonna run late. I'm running any in 551 00:29:21,200 --> 00:29:23,120 Speaker 1: the car, doctor, We'll be back right after this. Don't 552 00:29:23,120 --> 00:29:34,240 Speaker 1: go away, welcome back, run any of the car. Doctor here, Jean, 553 00:29:34,280 --> 00:29:38,360 Speaker 1: you're still there, sir. Okay, that was going to say, 554 00:29:38,360 --> 00:29:41,240 Speaker 1: when I cleared the code on it. Uh, what happens 555 00:29:41,360 --> 00:29:44,880 Speaker 1: is and may go thirty fifty miles and then the 556 00:29:44,960 --> 00:29:47,400 Speaker 1: check engine light comes back on, so you know what 557 00:29:47,520 --> 00:29:49,960 Speaker 1: you clear, it will stay off until about you know, 558 00:29:50,040 --> 00:29:52,640 Speaker 1: maybe fifty miles. Did you ever go when you went 559 00:29:52,680 --> 00:29:55,120 Speaker 1: to high school? How many periods did you have? Seven? Eight? 560 00:29:55,400 --> 00:29:58,120 Speaker 1: I had eight? Was eight periods? Right, So if I 561 00:29:58,160 --> 00:29:59,920 Speaker 1: knew the English test with at the end of the day, 562 00:30:00,720 --> 00:30:02,520 Speaker 1: it took me seven periods to get there. I had 563 00:30:02,520 --> 00:30:04,960 Speaker 1: to walk through seven periods of classes or seven segments 564 00:30:04,960 --> 00:30:08,280 Speaker 1: of classes. Right. For the cat monitor run, it may 565 00:30:08,320 --> 00:30:12,000 Speaker 1: take thirty or fifty miles before it finally runs its test. 566 00:30:12,800 --> 00:30:16,080 Speaker 1: It's just it's just that simple. And here I thought 567 00:30:16,120 --> 00:30:17,600 Speaker 1: of something you can do real quick. You have a 568 00:30:17,600 --> 00:30:21,880 Speaker 1: scan tool. Does it have data stream on it? Uh? No, 569 00:30:22,080 --> 00:30:25,880 Speaker 1: it's just a basic scanner. Okay, So if you want 570 00:30:25,880 --> 00:30:27,800 Speaker 1: to if you want to prove which is oxygen sensor 571 00:30:27,880 --> 00:30:30,959 Speaker 1: one an oxygen sensor to all right, and do this 572 00:30:30,960 --> 00:30:33,080 Speaker 1: with the engine cold. This way you don't burn your hands. 573 00:30:33,280 --> 00:30:36,440 Speaker 1: Disconnect one of the O two's, start the truck up. 574 00:30:37,080 --> 00:30:40,480 Speaker 1: It'll set a fault code if you if you disconnect 575 00:30:40,480 --> 00:30:42,120 Speaker 1: the front one, it's gonna send a fault code for 576 00:30:42,280 --> 00:30:46,360 Speaker 1: Bank one censor one inactivity or Bank one censor one heater. 577 00:30:46,600 --> 00:30:48,959 Speaker 1: It's gonna tell you, by definition of code, which one 578 00:30:49,000 --> 00:30:50,920 Speaker 1: you unplugged. It's going to prove to you there are 579 00:30:50,920 --> 00:30:53,960 Speaker 1: two O twos in this vehicle. Alright, nothing related to 580 00:30:54,040 --> 00:30:56,600 Speaker 1: what we're talking about, just showing you how things are 581 00:30:56,640 --> 00:30:58,720 Speaker 1: laid out. Go do what you gotta do. Go visit 582 00:30:58,720 --> 00:31:00,440 Speaker 1: your auto zone, call me back if you need more. 583 00:31:00,440 --> 00:31:03,480 Speaker 1: All right, Kido, I gotta go. Do well, Let's go 584 00:31:03,520 --> 00:31:06,560 Speaker 1: to Brian real quick and get him started. Brian, I 585 00:31:06,600 --> 00:31:07,840 Speaker 1: got a minute, and then we're gonna come back to 586 00:31:07,920 --> 00:31:10,560 Speaker 1: end finishing on the back side. What's going on? All right? 587 00:31:10,720 --> 00:31:15,520 Speaker 1: Quick question? What was that thermostat that you talked about 588 00:31:15,600 --> 00:31:19,120 Speaker 1: that was bad or there was a good brand that 589 00:31:19,200 --> 00:31:23,520 Speaker 1: you mean, motor plastic, motor ret motor red, m O 590 00:31:23,640 --> 00:31:27,720 Speaker 1: T O motor Red, motor Ret M M O T 591 00:31:27,880 --> 00:31:31,600 Speaker 1: O R A D. They make gold sort, they make thermostats, 592 00:31:31,600 --> 00:31:34,080 Speaker 1: they make gold sorts of sensors. Their stuff meets I 593 00:31:34,240 --> 00:31:38,040 Speaker 1: S on nine thousand testing specifications. Great strike. My friend 594 00:31:38,120 --> 00:31:43,480 Speaker 1: has two fifteen rogue where his thermostat is screwed at 595 00:31:43,560 --> 00:31:47,440 Speaker 1: this point. All right, so I'm wondering would that be 596 00:31:47,520 --> 00:31:50,080 Speaker 1: in a rogue of two thousand fifteen. Well, I don't 597 00:31:50,120 --> 00:31:51,640 Speaker 1: know if it's plastic or not, but you'd have to 598 00:31:51,680 --> 00:31:53,800 Speaker 1: go to the motor ret website and then look it 599 00:31:53,840 --> 00:31:55,680 Speaker 1: up by application to see if they make what I'm 600 00:31:55,720 --> 00:31:57,760 Speaker 1: sure they do. Motor Rat actually makes a lot of 601 00:31:57,760 --> 00:32:02,160 Speaker 1: OI parts that you know, meet manufactured respects. The manufacturers 602 00:32:02,160 --> 00:32:04,760 Speaker 1: are using them and a lot of direct applications. As 603 00:32:04,760 --> 00:32:06,960 Speaker 1: a matter of fact, the conversation you're me talking about 604 00:32:07,520 --> 00:32:10,560 Speaker 1: was the local jeep dealer was using motor Rat thermostats 605 00:32:10,560 --> 00:32:12,920 Speaker 1: because they couldn't buy them from Chrysler anymore. And that's 606 00:32:12,920 --> 00:32:15,760 Speaker 1: what generated that conversation way back when. So but yeah, 607 00:32:15,760 --> 00:32:18,120 Speaker 1: get out to motorat dot com, check out their website, 608 00:32:18,120 --> 00:32:19,920 Speaker 1: and I bet you're gonna find they make a thermostaff 609 00:32:19,920 --> 00:32:21,760 Speaker 1: for that vehicle. And then get yourself over to your 610 00:32:21,760 --> 00:32:23,600 Speaker 1: local auto zone and they'll have it for you. Eight 611 00:32:25,520 --> 00:32:27,840 Speaker 1: zero runninating the car doctor coming back right after this. 612 00:32:36,280 --> 00:32:40,200 Speaker 1: Well I'm tired. What a busy two hours? Holy count. 613 00:32:40,840 --> 00:32:43,200 Speaker 1: Um I'll tell you what time flew by. But boy, 614 00:32:43,240 --> 00:32:45,800 Speaker 1: were sure fixed a lot of cars this week. Um, 615 00:32:45,880 --> 00:32:48,320 Speaker 1: one more, let's just do this. Let's answer this email. Run. 616 00:32:48,360 --> 00:32:50,240 Speaker 1: A while back, you had on your show a guy 617 00:32:50,280 --> 00:32:52,720 Speaker 1: from New Hampshire that treated vehicle engine compartments with a 618 00:32:52,760 --> 00:32:55,959 Speaker 1: spray that the urs, critters, critters and cars. I love it. 619 00:32:56,160 --> 00:32:58,000 Speaker 1: I can't seem to find them online, probably just not 620 00:32:58,040 --> 00:33:00,840 Speaker 1: searching correctly. Remember who this was? If I remember who 621 00:33:00,920 --> 00:33:02,960 Speaker 1: this was? Are you kidding? Becauld, you please send us 622 00:33:02,960 --> 00:33:05,560 Speaker 1: company's info, Dave. Dave writes in, UM, yeah, Dave, you're 623 00:33:05,560 --> 00:33:08,880 Speaker 1: talking about New Hampshire Oil Undercoating. New Hampshire Oil Undercoating 624 00:33:08,920 --> 00:33:13,120 Speaker 1: dot com. Absolutely a great product, and you're speaking directly 625 00:33:13,160 --> 00:33:17,160 Speaker 1: about their product called mouse Out. Mouse Out is an 626 00:33:17,160 --> 00:33:21,080 Speaker 1: oil spray that and they do it different. You know. 627 00:33:21,240 --> 00:33:24,160 Speaker 1: NH Oil Undercoating does this way different than everybody else. 628 00:33:24,160 --> 00:33:27,040 Speaker 1: Everybody else has a has some sort of a product 629 00:33:27,080 --> 00:33:29,719 Speaker 1: that's it's either tape or pepper smell or something that 630 00:33:29,760 --> 00:33:33,720 Speaker 1: we as humans can smell too. Mouse Out is a 631 00:33:33,800 --> 00:33:38,680 Speaker 1: predatory spray to deter the animals so that they leave, 632 00:33:39,000 --> 00:33:41,760 Speaker 1: so that they think there's an animal nearby. It creates 633 00:33:41,760 --> 00:33:44,120 Speaker 1: a scent that you know when when another animal is 634 00:33:44,160 --> 00:33:46,280 Speaker 1: nearby that a mouse will smell it, you know, a 635 00:33:46,320 --> 00:33:49,760 Speaker 1: cat or something and it leaves. So it's not disruptive 636 00:33:49,800 --> 00:33:51,720 Speaker 1: to us as human beings, which is great because we're 637 00:33:51,720 --> 00:33:53,520 Speaker 1: the vehicle owners were operating the vehicle. We don't have 638 00:33:53,600 --> 00:33:56,080 Speaker 1: to smell this, you know, peppermint or pepper or whatever 639 00:33:56,120 --> 00:33:58,480 Speaker 1: the heck it is. But you're thinking of mouse out 640 00:33:58,640 --> 00:34:00,520 Speaker 1: and you will find it on their website n h 641 00:34:00,640 --> 00:34:03,200 Speaker 1: oil Undercoating dot com. As a matter of fact, we're 642 00:34:03,200 --> 00:34:05,600 Speaker 1: working on um. We're gonna be doing a quick video 643 00:34:05,600 --> 00:34:07,680 Speaker 1: in the shop. I've got a van that's gonna be 644 00:34:07,720 --> 00:34:10,360 Speaker 1: that's getting prepped to have the NH oil ndercoating process 645 00:34:10,400 --> 00:34:12,799 Speaker 1: done to it. It's in the process of having having 646 00:34:12,800 --> 00:34:14,719 Speaker 1: an engine put in it and once the engine is done, 647 00:34:15,000 --> 00:34:17,280 Speaker 1: where then gonna show you how to spray the vehicle. 648 00:34:17,280 --> 00:34:19,640 Speaker 1: It's a nine Chevy astro Van, I'm sorry, at two 649 00:34:19,640 --> 00:34:23,719 Speaker 1: thousand Chevy astro Van and the owner wants to drive 650 00:34:23,760 --> 00:34:25,880 Speaker 1: it another twenty years, and I told him it is the 651 00:34:25,840 --> 00:34:27,040 Speaker 1: the only one way I know to do that, and 652 00:34:27,040 --> 00:34:28,560 Speaker 1: that's to keep it from rusting. And the only thing 653 00:34:28,560 --> 00:34:30,480 Speaker 1: I know in the marketplace to keep it from rusting 654 00:34:30,760 --> 00:34:34,279 Speaker 1: is New Hampshire Oil New Hampshire Oil Undercoating, And we're 655 00:34:34,280 --> 00:34:36,040 Speaker 1: gonna give it the treatment once the engine is back 656 00:34:36,080 --> 00:34:37,799 Speaker 1: in it and a couple of weeks, maybe a month 657 00:34:37,880 --> 00:34:39,680 Speaker 1: or so, so look for that. We'll put it up 658 00:34:39,680 --> 00:34:43,000 Speaker 1: on our website. But just uh, just keep that in mind. 659 00:34:43,000 --> 00:34:44,839 Speaker 1: And yeah, that's what you're looking for n H Oil 660 00:34:44,920 --> 00:34:47,480 Speaker 1: Undercoating dot com. You're looking for mouse out, Dave. I 661 00:34:47,560 --> 00:34:50,120 Speaker 1: appreciate the letter. Hey, til the next time, I'm ron 662 00:34:50,200 --> 00:34:53,239 Speaker 1: a any in the car doctor telling you good mechanics 663 00:34:53,280 --> 00:35:03,400 Speaker 1: aren't expensive, they're priceless. Let's see you. She was star