1 00:00:02,720 --> 00:00:06,000 Speaker 1: Ron Anian. They call it a thermostat assembly module, but 2 00:00:06,120 --> 00:00:08,559 Speaker 1: on the other side of the engine it's a thermostat housing, 3 00:00:08,600 --> 00:00:15,760 Speaker 1: because that's what it looks like. Where the Car Doctor, 4 00:00:16,000 --> 00:00:18,400 Speaker 1: I think they're probably worn out, that's right, the one 5 00:00:18,480 --> 00:00:21,280 Speaker 1: during it. Well, they could be, Uh, they could be. 6 00:00:21,360 --> 00:00:23,360 Speaker 1: But you know what the question is, you don't know, 7 00:00:23,560 --> 00:00:26,160 Speaker 1: So you could play what if all day long. Welcome 8 00:00:26,239 --> 00:00:29,320 Speaker 1: to the radio home of ron and Nian the Car Doctor, 9 00:00:29,600 --> 00:00:34,080 Speaker 1: since this is where car owners the world overturned to 10 00:00:34,240 --> 00:00:38,480 Speaker 1: for their definitive opinion on automotive repair. If your mechanics 11 00:00:38,479 --> 00:00:41,080 Speaker 1: giving you a busy signal, pick up the phone and 12 00:00:41,159 --> 00:00:44,440 Speaker 1: call in. The garage doors are open, but I am 13 00:00:44,440 --> 00:00:47,000 Speaker 1: here to take your calls at eight five five five six, 14 00:00:48,040 --> 00:00:55,080 Speaker 1: and now he running. Hey, welcome, Welcome, Welcome. Eight five 15 00:00:55,120 --> 00:00:58,400 Speaker 1: five five zero zero is the phone number. Let's give 16 00:00:58,440 --> 00:01:00,360 Speaker 1: that out and let's get right to the ownes, which 17 00:01:00,360 --> 00:01:03,120 Speaker 1: are a little you know, before we go to the phones, Tom, 18 00:01:03,200 --> 00:01:05,280 Speaker 1: would you explain that to me? Tom sent me a 19 00:01:05,360 --> 00:01:07,640 Speaker 1: note as you're about to start the show about this. 20 00:01:08,280 --> 00:01:11,560 Speaker 1: What are you doing. Well, there's some big fancy pants 21 00:01:11,600 --> 00:01:14,800 Speaker 1: study out that they've looked at cars and they said, 22 00:01:14,840 --> 00:01:18,640 Speaker 1: you know, we've taken this iPad basically and plastered it 23 00:01:18,680 --> 00:01:21,760 Speaker 1: on your dashboard, and we're replacing physical buttons in the 24 00:01:21,840 --> 00:01:25,360 Speaker 1: cars with touch buttons on the touch screen. And they've 25 00:01:25,400 --> 00:01:29,119 Speaker 1: determined that those aren't as safe or as effective as 26 00:01:29,160 --> 00:01:34,039 Speaker 1: the regular buttons. Uh right, Well, listen, I'll tell you 27 00:01:34,080 --> 00:01:36,640 Speaker 1: what I was. I was going to work the other 28 00:01:36,720 --> 00:01:39,600 Speaker 1: morning and I'm tuning it along and I'm I'm I'm 29 00:01:39,680 --> 00:01:41,880 Speaker 1: really doing the speed limen. I'm doing thirty five on 30 00:01:41,880 --> 00:01:44,600 Speaker 1: the back road here in New Jersey and I came 31 00:01:44,640 --> 00:01:46,240 Speaker 1: around the bend. Then it was a you know, not 32 00:01:46,319 --> 00:01:49,880 Speaker 1: a blind spot, but not a great spot, and there 33 00:01:50,160 --> 00:01:53,200 Speaker 1: was a Honda trying to make a left turn onto 34 00:01:53,200 --> 00:01:56,200 Speaker 1: a side street and he was he was, you know, 35 00:01:56,560 --> 00:01:59,600 Speaker 1: perpendicular to me. Um as he's making his left or 36 00:01:59,600 --> 00:02:01,320 Speaker 1: he's all l to me. He's on the other side. 37 00:02:01,320 --> 00:02:03,680 Speaker 1: He would hit me head on and he goes to 38 00:02:03,720 --> 00:02:06,920 Speaker 1: make the left, and you know, he didn't look up. 39 00:02:07,680 --> 00:02:10,880 Speaker 1: He was looking at his phone making the left at 40 00:02:10,960 --> 00:02:14,040 Speaker 1: the time, just completely distracted. Tom. If I had hit him, 41 00:02:14,040 --> 00:02:16,359 Speaker 1: I would have killed him because the truck would have 42 00:02:16,400 --> 00:02:18,639 Speaker 1: run right over the top of this thing and that 43 00:02:19,000 --> 00:02:21,560 Speaker 1: and you know, I was out in Nevada last week. 44 00:02:22,200 --> 00:02:25,760 Speaker 1: And you know the car had radio with what had 45 00:02:25,760 --> 00:02:28,840 Speaker 1: the touch screen radio? Now the radio in my Ford escape, 46 00:02:28,880 --> 00:02:30,960 Speaker 1: I can just reach over. I can just I'm watching 47 00:02:31,000 --> 00:02:32,600 Speaker 1: the road and I just reach over and field the 48 00:02:32,600 --> 00:02:35,280 Speaker 1: buttons and go click and know what I'm pressing. I'm 49 00:02:35,280 --> 00:02:38,200 Speaker 1: trying to change stations because I have six stations that 50 00:02:38,240 --> 00:02:42,360 Speaker 1: I con sold for out there, and I couldn't find 51 00:02:42,360 --> 00:02:44,320 Speaker 1: the buttons. I had to actually look at the radio. 52 00:02:44,360 --> 00:02:47,880 Speaker 1: And it was like, come on, people, well in six 53 00:02:47,919 --> 00:02:49,519 Speaker 1: And I always go back to this story and I 54 00:02:49,560 --> 00:02:52,560 Speaker 1: seem to remember these things. Don't ask me why I'm boring. 55 00:02:52,919 --> 00:02:56,679 Speaker 1: In six, General Motors brought out touch screen. I don't 56 00:02:56,680 --> 00:02:58,480 Speaker 1: know if anybody will remember this, but they brought out 57 00:02:58,560 --> 00:03:02,720 Speaker 1: touch screen dash controls for heat or and radio in 58 00:03:02,880 --> 00:03:07,600 Speaker 1: certain models of Oldsmobile and Buick. And they sold like 59 00:03:07,639 --> 00:03:10,760 Speaker 1: hotcakes the first month, and then they sat on the lot, 60 00:03:10,840 --> 00:03:12,440 Speaker 1: and then they sat on the lot, and then they 61 00:03:12,480 --> 00:03:14,200 Speaker 1: sat on the lot. And I remember at the end 62 00:03:14,240 --> 00:03:18,120 Speaker 1: of the model your run, GM had thousands and thousands 63 00:03:18,120 --> 00:03:21,840 Speaker 1: of these cars left over. Nobody wanted them because the 64 00:03:22,040 --> 00:03:26,079 Speaker 1: increased problems they were having from accidents. Because people were 65 00:03:26,360 --> 00:03:29,840 Speaker 1: people started watching the screen in front of them because 66 00:03:29,840 --> 00:03:32,160 Speaker 1: they forgot they were driving. They started paying attention to 67 00:03:32,200 --> 00:03:34,639 Speaker 1: the screen. Oh where's that button, where's this button. It's 68 00:03:34,840 --> 00:03:38,040 Speaker 1: you need the tactile feel, all right, you need to 69 00:03:38,080 --> 00:03:40,400 Speaker 1: feel that button, that roughness of the button or the 70 00:03:40,400 --> 00:03:44,160 Speaker 1: lip of the button, because in the event of an accident, 71 00:03:44,200 --> 00:03:45,720 Speaker 1: the event of a decision on the road, it is 72 00:03:45,760 --> 00:03:47,920 Speaker 1: a split second. And I gotta tell you, And if 73 00:03:47,920 --> 00:03:50,440 Speaker 1: you're one of these people that's driving worse since the pandemic, 74 00:03:50,440 --> 00:03:52,960 Speaker 1: because I think everybody being away, get off the road, 75 00:03:53,120 --> 00:03:56,080 Speaker 1: because I gotta tell you, everybody's driving worse. Nobody's driving better. 76 00:03:56,160 --> 00:03:59,360 Speaker 1: I find everybody is driving worse. Uh it's like nobody 77 00:03:59,560 --> 00:04:02,520 Speaker 1: nobody could drive before. You're going backwards now in terms 78 00:04:02,520 --> 00:04:06,280 Speaker 1: of driving skills because there's no there's no attention span anymore. Uh. Well, 79 00:04:06,280 --> 00:04:09,880 Speaker 1: you know it was funny there. Uh a study came out. 80 00:04:10,320 --> 00:04:13,400 Speaker 1: Yeah it's not yesterday, but sometime in the last week. 81 00:04:13,880 --> 00:04:15,680 Speaker 1: And I had to laugh because I heard this on 82 00:04:15,720 --> 00:04:19,600 Speaker 1: the area yesterday. I was driving in Connecticut, and not 83 00:04:19,640 --> 00:04:21,960 Speaker 1: to pick on Connecticut, but when I learned to drive 84 00:04:21,960 --> 00:04:24,960 Speaker 1: in Connecticut years ago, people actually behave themselves. And now 85 00:04:24,960 --> 00:04:27,279 Speaker 1: it's like I got I get people in Connecticut passing 86 00:04:27,360 --> 00:04:30,960 Speaker 1: me in the breakdown lane, and Connecticut apparently has the 87 00:04:31,000 --> 00:04:32,920 Speaker 1: best drivers in the country. And I'm sitting here going 88 00:04:33,240 --> 00:04:35,880 Speaker 1: not from my seat? Yeah I was. I was in 89 00:04:35,880 --> 00:04:39,480 Speaker 1: Connecticut yesterday. Was that you? Sorry? Next? Next? Next time? 90 00:04:39,520 --> 00:04:41,760 Speaker 1: I won't pass you? Do you leave it to me? So? 91 00:04:41,880 --> 00:04:43,040 Speaker 1: Can I go to the phones? Now? I think we 92 00:04:43,040 --> 00:04:45,120 Speaker 1: should go to the phone. Let's go to Sam in Arizona. Oh, 93 00:04:45,240 --> 00:04:48,320 Speaker 1: three buicles saber, Thanks Tom, Oh, three buic les sabers. Sam. 94 00:04:48,440 --> 00:04:50,480 Speaker 1: There's a return called Sam. Bring me up today, bring 95 00:04:50,520 --> 00:04:52,400 Speaker 1: us up to date. I know we talked a little 96 00:04:52,400 --> 00:04:55,760 Speaker 1: bit ago um about the high idol uh some of 97 00:04:55,760 --> 00:04:57,400 Speaker 1: the tests. I gave you what you find out and 98 00:04:57,440 --> 00:05:01,400 Speaker 1: then where are we now? So I've got some data 99 00:05:01,440 --> 00:05:04,560 Speaker 1: from my scan tool. Unfortunately, I think it has some 100 00:05:04,600 --> 00:05:06,920 Speaker 1: good data, but it doesn't have the I A C count. 101 00:05:07,960 --> 00:05:10,720 Speaker 1: So can I give you some was this was? Was 102 00:05:10,760 --> 00:05:14,559 Speaker 1: this a mechanical um? Was this a mechanical throttle plate 103 00:05:14,640 --> 00:05:20,239 Speaker 1: or a drive by wire throttle plate? Car? Mechanical mechanical Okay, 104 00:05:20,240 --> 00:05:25,520 Speaker 1: this has mechanical linkage. Okay, go ahead, Yeah, So at 105 00:05:25,560 --> 00:05:30,200 Speaker 1: idle and it said closed loop to calculated load with 106 00:05:30,279 --> 00:05:34,480 Speaker 1: three point nine p e c T size engine cool 107 00:05:34,520 --> 00:05:37,520 Speaker 1: and temperature one fifty six degrees. Typically it runs around 108 00:05:37,520 --> 00:05:40,839 Speaker 1: two hundred, so it's still a little cold. Short term 109 00:05:41,040 --> 00:05:44,800 Speaker 1: field trim B one it jumped around I think it 110 00:05:44,880 --> 00:05:49,760 Speaker 1: said one point six and then it got up two 111 00:05:51,440 --> 00:05:54,480 Speaker 1: and then long term filter trim B one zero percent 112 00:05:54,760 --> 00:06:00,479 Speaker 1: map nine hus mercury. Okay, so we don't So so 113 00:06:00,520 --> 00:06:02,560 Speaker 1: what that's telling me is we don't have a vacuum leak. 114 00:06:03,720 --> 00:06:05,680 Speaker 1: Al Right, it doesn't. It doesn't sound like we've got 115 00:06:05,720 --> 00:06:07,880 Speaker 1: a vacuum leak, and we don't have an alternate source 116 00:06:07,880 --> 00:06:09,880 Speaker 1: of air that is trying to compensate for with fuel. 117 00:06:10,760 --> 00:06:15,240 Speaker 1: So did you? But there's more So the RPM was 118 00:06:15,320 --> 00:06:22,880 Speaker 1: jumped around around eleven hundreds as almost m zero miles 119 00:06:22,880 --> 00:06:27,279 Speaker 1: per hour. Spark advance twenty five point five degrees. I 120 00:06:27,440 --> 00:06:29,880 Speaker 1: A T. I guess that's intake air tempature eighty one 121 00:06:29,920 --> 00:06:32,640 Speaker 1: degrees Fahrenhegh. It's a little warm and two sons a 122 00:06:32,720 --> 00:06:35,400 Speaker 1: week ago, and that's and that's and that's what it was, right, 123 00:06:35,440 --> 00:06:41,040 Speaker 1: it was around eighty degrees. Yeah, maybe a little lower 124 00:06:42,000 --> 00:06:45,440 Speaker 1: because of greenhouse effects. I don't know. Under the head. Uh, 125 00:06:45,600 --> 00:06:51,280 Speaker 1: the sun was shining uh m at eight seven pounds 126 00:06:51,400 --> 00:06:57,000 Speaker 1: per minute. Well here, give me let me, let me, 127 00:06:57,040 --> 00:06:58,520 Speaker 1: let me ask you this. Do you do you have 128 00:06:58,600 --> 00:07:02,599 Speaker 1: I at counts? Do you have idol are control counts? There? No, 129 00:07:03,279 --> 00:07:04,960 Speaker 1: that's like the one thing it was missing that you 130 00:07:05,000 --> 00:07:07,800 Speaker 1: asked for right away, because you asked me about before 131 00:07:07,880 --> 00:07:09,600 Speaker 1: what was And I'm like, I don't, I don't remember. 132 00:07:09,960 --> 00:07:11,720 Speaker 1: And I went back to my scan toal it didn't 133 00:07:11,720 --> 00:07:15,800 Speaker 1: have that, but I almost done. TPS was point four percent, 134 00:07:16,000 --> 00:07:18,440 Speaker 1: so I wasn't didn't have my foot on the accelerator. 135 00:07:19,280 --> 00:07:25,880 Speaker 1: Uh oh too oh t S I guess oxygen center 136 00:07:26,680 --> 00:07:29,120 Speaker 1: B one S one point eight vaults and then jump 137 00:07:29,160 --> 00:07:31,560 Speaker 1: to point four vaults of the jump around in the 138 00:07:31,640 --> 00:07:34,520 Speaker 1: last two things. I don't understand these two. Then it 139 00:07:34,600 --> 00:07:37,840 Speaker 1: also gave me st F T so short term feel 140 00:07:37,920 --> 00:07:40,440 Speaker 1: trim B one, I assume B one S one, I'm 141 00:07:40,440 --> 00:07:43,360 Speaker 1: not sure what S one means percent one and will 142 00:07:43,440 --> 00:07:45,640 Speaker 1: jump around one point six percent three point one percent. 143 00:07:45,920 --> 00:07:47,760 Speaker 1: And here's the biggest thing that seems out of the 144 00:07:48,000 --> 00:07:51,280 Speaker 1: ordinary short term field trim B one S two, I'm 145 00:07:51,320 --> 00:07:57,720 Speaker 1: not sure what S two means nine point disregard that 146 00:07:57,880 --> 00:08:01,200 Speaker 1: it's it's it's looking for uh s. When you see 147 00:08:01,320 --> 00:08:04,080 Speaker 1: S one and S two calculated off a fuel trim 148 00:08:04,200 --> 00:08:07,960 Speaker 1: or after fuel trim letters, it's it's telling you that 149 00:08:08,000 --> 00:08:12,640 Speaker 1: if there is a calculated fuel trim based on sensor response, 150 00:08:13,000 --> 00:08:16,280 Speaker 1: that's it. You're you're you're sort of looking at the 151 00:08:16,320 --> 00:08:21,640 Speaker 1: denominator that creates fuel trim inside the computer. It's confused. 152 00:08:21,640 --> 00:08:23,960 Speaker 1: It's confusing. When you want to know about fuel trim, 153 00:08:24,040 --> 00:08:26,320 Speaker 1: look at the actual fuel trim number. Because your fuel 154 00:08:26,360 --> 00:08:29,480 Speaker 1: trim number is good. You can't have you can't sit 155 00:08:29,520 --> 00:08:31,600 Speaker 1: there and say, well, bank one or you can't say 156 00:08:31,600 --> 00:08:34,280 Speaker 1: short term fuel trim bank to s or bank to 157 00:08:34,480 --> 00:08:38,040 Speaker 1: cents or two. Is is skewed if you're total fuel 158 00:08:38,080 --> 00:08:40,559 Speaker 1: trim and long and short term are both normal. I 159 00:08:40,600 --> 00:08:43,400 Speaker 1: will tell you that that reading. I've seen that before 160 00:08:43,440 --> 00:08:46,480 Speaker 1: on older O B D two scanners, and I've learned 161 00:08:46,480 --> 00:08:48,880 Speaker 1: to disregard it. I think that the tool is reporting 162 00:08:48,880 --> 00:08:51,880 Speaker 1: an erroneous message, or it just doesn't it's not applicable. 163 00:08:52,120 --> 00:08:54,360 Speaker 1: I think that's a placeholder in the scan tool. They 164 00:08:54,360 --> 00:08:56,040 Speaker 1: put it there so that when they find one that 165 00:08:56,080 --> 00:09:01,839 Speaker 1: it applies to, that it shows up. Okay, it's idle, right, 166 00:09:01,880 --> 00:09:03,760 Speaker 1: Oh yeah, that's a high idol, that idol should be, 167 00:09:04,160 --> 00:09:08,079 Speaker 1: that idol should be you know PM. So the one 168 00:09:08,120 --> 00:09:09,640 Speaker 1: thing I come back to is I wish I knew 169 00:09:09,640 --> 00:09:12,200 Speaker 1: what idle air accounts were. If you take the idle 170 00:09:12,240 --> 00:09:18,200 Speaker 1: air control motor out and and and extend it righted 171 00:09:18,280 --> 00:09:20,559 Speaker 1: it with a good one? Well no, no, hear me out. 172 00:09:20,600 --> 00:09:22,559 Speaker 1: If you if you take the idle air control motor 173 00:09:22,600 --> 00:09:26,360 Speaker 1: out and wiggle the nose out, make it longer, right, 174 00:09:27,120 --> 00:09:30,400 Speaker 1: and screw it in and screw it in slowly so 175 00:09:30,440 --> 00:09:33,000 Speaker 1: that as you screw it in, so that the taper 176 00:09:33,080 --> 00:09:36,000 Speaker 1: is going to be against the seat. Right, and you 177 00:09:36,120 --> 00:09:38,679 Speaker 1: understand what I'm saying, You're gonna actually close the You're 178 00:09:38,720 --> 00:09:41,120 Speaker 1: gonna close the flap on the toilet so it doesn't drain, 179 00:09:41,440 --> 00:09:46,760 Speaker 1: right if you right, you're gonna close the door. If 180 00:09:46,800 --> 00:09:51,520 Speaker 1: you do that, Okay, and you disconnect the throttle linkage, 181 00:09:52,040 --> 00:09:54,480 Speaker 1: just for giggles, to make sure the throttle linkage isn't 182 00:09:54,480 --> 00:09:59,040 Speaker 1: holding this thing up high? Okay? Where look like? All right, 183 00:09:59,040 --> 00:10:08,280 Speaker 1: where's the RPM? Okay? Right? Now? Done? Yeah, yeah, we're 184 00:10:08,320 --> 00:10:11,600 Speaker 1: just we're using the I A C. If your thumb 185 00:10:11,600 --> 00:10:13,040 Speaker 1: would fit in the hall, I'll tell you to stick 186 00:10:13,040 --> 00:10:17,600 Speaker 1: your thumb in the hall. Right, Okay, we're just making 187 00:10:17,640 --> 00:10:19,840 Speaker 1: a cork. We're using the idle air control valve as 188 00:10:19,880 --> 00:10:24,120 Speaker 1: a cork, all right, and and all we're looking all 189 00:10:24,200 --> 00:10:27,040 Speaker 1: we're looking to do at that point if the if 190 00:10:27,040 --> 00:10:30,680 Speaker 1: the RPM drops and it's it's down at that point, 191 00:10:30,720 --> 00:10:34,160 Speaker 1: the only air getting into that engine should be across 192 00:10:34,200 --> 00:10:39,280 Speaker 1: the throttle plate. All right. So now you are you 193 00:10:39,320 --> 00:10:42,600 Speaker 1: are going to you are going to see base minimum 194 00:10:42,640 --> 00:10:51,480 Speaker 1: idle speed probably in the four to five range, all right, right, 195 00:10:51,520 --> 00:10:54,080 Speaker 1: at least under seven hundred. And if that's the case, 196 00:10:54,520 --> 00:10:58,199 Speaker 1: we've just proved that there's no intake manifold leaks, that 197 00:10:58,280 --> 00:11:01,120 Speaker 1: there's no other vacuum leaks. It's not the break booster. 198 00:11:01,200 --> 00:11:03,480 Speaker 1: We've proved that the throttle plates in the right position. 199 00:11:05,040 --> 00:11:07,120 Speaker 1: All right, And now we've got to start to talk 200 00:11:07,160 --> 00:11:10,880 Speaker 1: about do we have do we have an issue with 201 00:11:10,960 --> 00:11:14,439 Speaker 1: And you said tps uh the voltage? Uh? Did you 202 00:11:14,559 --> 00:11:17,600 Speaker 1: was there a throttle position sensor voltage? Did they give 203 00:11:17,640 --> 00:11:20,640 Speaker 1: you that? No? It was it was percent, it was 204 00:11:20,720 --> 00:11:27,440 Speaker 1: point four. Okay. Basically right, just before you do what 205 00:11:27,480 --> 00:11:30,320 Speaker 1: I said about the i AK disconnect, the throttle position 206 00:11:30,360 --> 00:11:33,600 Speaker 1: sensor key on engine off, you should see you should 207 00:11:33,640 --> 00:11:36,079 Speaker 1: be able to take a voltage reading, and you should 208 00:11:36,080 --> 00:11:38,400 Speaker 1: be able to see where that percentages they both should 209 00:11:38,440 --> 00:11:43,320 Speaker 1: drop to zero, right and and and it seems like 210 00:11:43,360 --> 00:11:46,439 Speaker 1: that throttle positions working because when I give it gas, 211 00:11:46,960 --> 00:11:53,120 Speaker 1: you can see the throttle position percent go away. I'm 212 00:11:53,160 --> 00:11:56,439 Speaker 1: not questioning whether it's working. I'm questioning whether the PCM 213 00:11:56,559 --> 00:12:00,280 Speaker 1: is overwriting the signal and creating its own want to 214 00:12:00,440 --> 00:12:01,839 Speaker 1: I just want to. I just want to prove that 215 00:12:01,880 --> 00:12:05,559 Speaker 1: the circuitry back you unplug that TPS, throttle percentage or 216 00:12:05,600 --> 00:12:08,320 Speaker 1: voltage whatever it's reading should drop to zero. If it 217 00:12:08,360 --> 00:12:10,320 Speaker 1: does that, we just prove that the connector is good, 218 00:12:10,320 --> 00:12:13,920 Speaker 1: the wiring is good, the throttle position sensor is working. Okay, 219 00:12:14,000 --> 00:12:16,440 Speaker 1: we're taking something else out of the equation. Tell me 220 00:12:16,480 --> 00:12:19,600 Speaker 1: what's good. I'll tell you what's bead um. I'm sort 221 00:12:19,640 --> 00:12:22,560 Speaker 1: of I'm sort of leaning towards a PCM on this car. 222 00:12:23,440 --> 00:12:26,959 Speaker 1: But before you do that, all right, take the PCM out, 223 00:12:27,040 --> 00:12:29,800 Speaker 1: hold it in your hand while the engine is running. 224 00:12:30,280 --> 00:12:31,520 Speaker 1: And do you know what I mean when I tell 225 00:12:31,559 --> 00:12:35,959 Speaker 1: you to flat palm smack it. Yeah? Do you ever 226 00:12:36,000 --> 00:12:40,600 Speaker 1: make pizza? You know you gotta pound out that though. Yeah, 227 00:12:40,880 --> 00:12:44,000 Speaker 1: give it a smack. Don't don't hit it hard, don't 228 00:12:44,160 --> 00:12:46,920 Speaker 1: you know? Um? But you know, I'm just wondering. I'm 229 00:12:46,920 --> 00:12:51,040 Speaker 1: just wondering if the PCM is is is crazy? All right? 230 00:12:51,559 --> 00:12:54,720 Speaker 1: Well I've had I've had three GM cars in forty 231 00:12:54,800 --> 00:12:57,400 Speaker 1: years and never had a PCM problem. Right, I hear 232 00:12:57,440 --> 00:12:59,960 Speaker 1: they're pretty reliable. Yeah, there. We used to see it. 233 00:13:00,000 --> 00:13:01,680 Speaker 1: We used to see it all the time. So but 234 00:13:01,760 --> 00:13:03,920 Speaker 1: do those tests and if you want to talk more 235 00:13:03,920 --> 00:13:05,839 Speaker 1: about it before you replace the PCM. If you come 236 00:13:05,840 --> 00:13:07,559 Speaker 1: to that conclusion, I'm here for your brother. Just give 237 00:13:07,600 --> 00:13:10,600 Speaker 1: me a call, all right, all right, thank you, you're welcome. 238 00:13:10,640 --> 00:13:13,719 Speaker 1: Sam b Well eight five zero nine zero we're back 239 00:13:13,800 --> 00:13:24,959 Speaker 1: right after this. Don't go away, that's right. If you 240 00:13:25,040 --> 00:13:27,440 Speaker 1: call and we're not live, you can leave a message 241 00:13:27,440 --> 00:13:28,960 Speaker 1: and we'll call you back to get you on the 242 00:13:28,960 --> 00:13:33,439 Speaker 1: air with Ron. Eight five five zero nine nine zero zero. 243 00:13:33,720 --> 00:13:36,640 Speaker 1: Speaking of Ron, Gary is Hey, let's get over and 244 00:13:36,679 --> 00:13:39,280 Speaker 1: talk to Gary in Wisconsin. Gary, welcome to the car doctor. 245 00:13:39,280 --> 00:13:43,239 Speaker 1: How can I help Ron? I've got an oh seven 246 00:13:43,280 --> 00:13:47,000 Speaker 1: f one fifty and uh it's about a hundred and 247 00:13:47,080 --> 00:13:51,319 Speaker 1: eleven thousand miles on it and pardon me, how miles 248 00:13:51,400 --> 00:13:55,520 Speaker 1: on it? When I go down the highway in high 249 00:13:55,600 --> 00:14:00,080 Speaker 1: gear when it gets up to drive. Um, I I 250 00:14:00,120 --> 00:14:02,120 Speaker 1: step on it a little bit, a little bit quick 251 00:14:02,160 --> 00:14:08,760 Speaker 1: at stumbles. I don't have any hobe the COO car codes. 252 00:14:10,559 --> 00:14:14,240 Speaker 1: I tested it, but I mean I run on test run, 253 00:14:14,440 --> 00:14:16,760 Speaker 1: but I can't. I can't figure out whether I should 254 00:14:17,080 --> 00:14:21,160 Speaker 1: be just changing spark plugs. The previous owner told me 255 00:14:21,200 --> 00:14:25,880 Speaker 1: he had put spark plugs in there about a hundred 256 00:14:26,280 --> 00:14:30,960 Speaker 1: thousand miles. Now he's got a hundred one. Um, but 257 00:14:31,040 --> 00:14:33,800 Speaker 1: I can't. I can't tell if you feel kind of 258 00:14:33,840 --> 00:14:35,760 Speaker 1: like it's missing, but it doesn't miss all the time, 259 00:14:36,160 --> 00:14:39,760 Speaker 1: because is that that's specific spot? So a couple of 260 00:14:39,800 --> 00:14:42,160 Speaker 1: a couple of questions, Gary, which engine is this the 261 00:14:42,160 --> 00:14:45,560 Speaker 1: four six or the five four? This is a five 262 00:14:45,600 --> 00:14:49,680 Speaker 1: four five four? Okay? Um, If he did spark plugs 263 00:14:49,720 --> 00:14:53,960 Speaker 1: at a hundred, provided he did them correctly, it likely 264 00:14:54,080 --> 00:14:58,200 Speaker 1: does not need spark plugs. But we can talk about 265 00:14:58,200 --> 00:15:02,240 Speaker 1: ignition coils, ignition coils on Fords as they age, or 266 00:15:02,920 --> 00:15:06,480 Speaker 1: the number one failure and creation of a miss. The 267 00:15:06,560 --> 00:15:08,840 Speaker 1: problem will be how do you know it's a miss? 268 00:15:08,840 --> 00:15:11,040 Speaker 1: You know that. The difference here is how do you 269 00:15:11,080 --> 00:15:13,680 Speaker 1: decide is it a miss. Is it a fuel stumble? 270 00:15:13,760 --> 00:15:16,040 Speaker 1: Is it an ignition stubble? Is stumble? Is it a 271 00:15:16,080 --> 00:15:20,840 Speaker 1: mechanical stumble? So we're gonna talk about a couple of things. Um, 272 00:15:21,000 --> 00:15:26,840 Speaker 1: does your scan tool display data? Okay, so you need 273 00:15:26,880 --> 00:15:29,800 Speaker 1: to scan tool displays data. I mean, there's no otherwise. 274 00:15:29,840 --> 00:15:32,080 Speaker 1: Otherwise we're gonna talk about guessing. You know, we might 275 00:15:32,080 --> 00:15:33,360 Speaker 1: as well go out to the bar together and we 276 00:15:33,360 --> 00:15:35,120 Speaker 1: can throw darts and say whatever it hits us, the 277 00:15:35,120 --> 00:15:41,280 Speaker 1: part will change, um, depending on how much we drink. So, um, 278 00:15:41,600 --> 00:15:44,280 Speaker 1: you know it's it's we need something to display data. 279 00:15:44,600 --> 00:15:47,000 Speaker 1: We we we want to understand about fuel trim. You 280 00:15:47,000 --> 00:15:48,880 Speaker 1: hear me talk about fuel trim before? Do you do 281 00:15:48,880 --> 00:15:50,800 Speaker 1: you understand fuel trim? Do you have any idea? What's 282 00:15:50,840 --> 00:15:54,640 Speaker 1: about a little bit? Yeah, okay, I listen to you. 283 00:15:56,960 --> 00:15:58,680 Speaker 1: So when I was when I was in high school, 284 00:15:58,680 --> 00:16:01,440 Speaker 1: when dirt was invented, Um, we we talked. You know, 285 00:16:01,440 --> 00:16:04,280 Speaker 1: they introduced us to geometry and algebra and all the 286 00:16:04,320 --> 00:16:06,320 Speaker 1: all the higher maths of the time. And they talked 287 00:16:06,360 --> 00:16:09,560 Speaker 1: about you know, number lines, and they said zero was 288 00:16:10,280 --> 00:16:12,480 Speaker 1: zero was real zero if I remember right, And then 289 00:16:12,480 --> 00:16:14,440 Speaker 1: there was positive numbers on the number line and there 290 00:16:14,480 --> 00:16:17,040 Speaker 1: was negative numbers on the number line. Zero was a 291 00:16:17,040 --> 00:16:20,240 Speaker 1: balanced fuel mixture. For the sake of our conversation, that's 292 00:16:20,240 --> 00:16:22,120 Speaker 1: where that's where the air and the fuel are the 293 00:16:22,560 --> 00:16:27,240 Speaker 1: correct proportion. No engine can really hold a correct fuel 294 00:16:27,280 --> 00:16:30,640 Speaker 1: trim over its RPM range. So they give the computer 295 00:16:30,720 --> 00:16:34,880 Speaker 1: the ability to add fuel or take away fuel. All right, 296 00:16:35,680 --> 00:16:38,880 Speaker 1: So there's there's two number lines in that computer software. 297 00:16:38,880 --> 00:16:41,520 Speaker 1: There's there's a long term fuel trim number. There's a 298 00:16:41,520 --> 00:16:44,840 Speaker 1: short term fuel trim number. What's you af for breakfast yesterday? 299 00:16:47,160 --> 00:16:50,440 Speaker 1: Sausage and eggs? Okay? That was your long term alright, 300 00:16:50,480 --> 00:16:52,920 Speaker 1: that was yesterday. All right? What'd you have for breat 301 00:16:52,920 --> 00:16:57,080 Speaker 1: What did you have for breakfast today? I had making 302 00:16:57,120 --> 00:16:59,600 Speaker 1: an eggs? Okay, so it was different, right, So that's 303 00:16:59,640 --> 00:17:02,920 Speaker 1: short term. You know, today is short term. Yesterday was 304 00:17:03,000 --> 00:17:05,520 Speaker 1: long term. Long term is history? Short term is current? 305 00:17:05,880 --> 00:17:11,760 Speaker 1: All right? Short term drives long term? All right, if 306 00:17:11,800 --> 00:17:14,520 Speaker 1: if and and there's a certain degree to which the 307 00:17:14,560 --> 00:17:18,280 Speaker 1: computer can move that electronic fuel adjustment and it's and 308 00:17:18,280 --> 00:17:22,679 Speaker 1: its software. For example, all right, let's say that the 309 00:17:22,720 --> 00:17:27,280 Speaker 1: computer can add up to a positive forty number. All right, 310 00:17:27,800 --> 00:17:31,159 Speaker 1: So zero is zero, Zero is fourteen point seven to 311 00:17:31,240 --> 00:17:34,480 Speaker 1: one air fuel mixture Stodeo metric. Whether or not I 312 00:17:34,600 --> 00:17:36,240 Speaker 1: saying that right, I don't care, but that's the way 313 00:17:36,240 --> 00:17:39,240 Speaker 1: we say it in Jersey. Okay. I've had people comment 314 00:17:39,320 --> 00:17:42,560 Speaker 1: who cares? Um, you know, that's the balanced fuel mixture 315 00:17:42,840 --> 00:17:46,480 Speaker 1: plus forties max. The computer will continue to adjust up 316 00:17:46,600 --> 00:17:51,240 Speaker 1: or down within them, within the limits of its electronic adjustability. 317 00:17:51,240 --> 00:17:53,359 Speaker 1: There's a limit to how far they can mechanically or 318 00:17:53,400 --> 00:17:56,000 Speaker 1: software take it all. Right. Back in the day, when 319 00:17:56,000 --> 00:17:58,000 Speaker 1: we had hot rods and we would jet carburetors and 320 00:17:58,040 --> 00:18:00,240 Speaker 1: we would put jets in, we would run the val 321 00:18:00,280 --> 00:18:03,080 Speaker 1: to the edge of the fuel trim as far as um, 322 00:18:03,280 --> 00:18:06,600 Speaker 1: as far as jetting was concerned. Right, So the computer 323 00:18:06,680 --> 00:18:09,320 Speaker 1: can do the same thing. So we want to see 324 00:18:09,320 --> 00:18:11,639 Speaker 1: where fuel trim is. That's step number one. And you 325 00:18:11,640 --> 00:18:13,439 Speaker 1: know what Gary State puts. Stay right where you are. 326 00:18:13,480 --> 00:18:15,080 Speaker 1: Let me pull over. Take this please, when we come back, 327 00:18:15,080 --> 00:18:17,240 Speaker 1: we'll pick up this conversation. I'm running Nay in the 328 00:18:17,240 --> 00:18:49,240 Speaker 1: car doctor. We'll return right after this. Don't go away. 329 00:18:53,040 --> 00:18:55,600 Speaker 1: Welcome back an the car doctor and we're here with 330 00:18:55,600 --> 00:18:59,320 Speaker 1: Gary Wisconsin. Gary, you're still there, sir, I am so. 331 00:18:59,680 --> 00:19:03,320 Speaker 1: So fuel trim is the idea that zero's a balance, makesure. 332 00:19:03,320 --> 00:19:06,000 Speaker 1: Plus or minus means it's adding subtracting fuel in order 333 00:19:06,000 --> 00:19:10,200 Speaker 1: to meet its fuel emissions or engine performance requirements. Makes sense, right, 334 00:19:11,560 --> 00:19:15,879 Speaker 1: So fault codes on fuel trim on most vehicles occur. 335 00:19:16,440 --> 00:19:18,919 Speaker 1: Let's sake of this conversation. Let's say it occurs at 336 00:19:18,920 --> 00:19:24,040 Speaker 1: the mark, right, if this is a lean fuel mixture, 337 00:19:24,040 --> 00:19:26,359 Speaker 1: and we'll go with lean because leans more likely to 338 00:19:26,400 --> 00:19:28,720 Speaker 1: create a stumble than rich, although rich can do it too, 339 00:19:28,720 --> 00:19:30,840 Speaker 1: but you'd be telling me about lousy gas mileage and 340 00:19:30,880 --> 00:19:33,680 Speaker 1: you'd smell, you know, the way the exhaust would smell. 341 00:19:34,320 --> 00:19:37,280 Speaker 1: So you know, a lean fuel condition, it's gonna set 342 00:19:37,280 --> 00:19:41,840 Speaker 1: a fault code at plus, all right. If fuel trim 343 00:19:42,080 --> 00:19:47,280 Speaker 1: was is it going to set a fault code? No? No, 344 00:19:48,240 --> 00:19:51,320 Speaker 1: So you know, looking at just codes all day long, 345 00:19:52,880 --> 00:19:54,840 Speaker 1: you know it just it doesn't do you anything. So 346 00:19:54,840 --> 00:19:56,480 Speaker 1: now we've got to start to go look at data. 347 00:19:56,760 --> 00:19:58,880 Speaker 1: So we want to see where fuel trim is, all right, 348 00:19:59,560 --> 00:20:01,480 Speaker 1: you know, we want to know. We want to know, 349 00:20:02,040 --> 00:20:04,560 Speaker 1: all right, And you know one of the questions I 350 00:20:04,600 --> 00:20:08,080 Speaker 1: would have is, uh, you know, pop a plug, take 351 00:20:08,119 --> 00:20:10,360 Speaker 1: one of the easier plugs to get out, all right, 352 00:20:10,840 --> 00:20:13,440 Speaker 1: what brand spark plug? Did he put in is it 353 00:20:13,560 --> 00:20:17,240 Speaker 1: the right spark plug? All right? You know, I mean 354 00:20:17,240 --> 00:20:20,679 Speaker 1: go through the basics when he did spark plugs. You know, 355 00:20:20,720 --> 00:20:22,960 Speaker 1: if if you can talk to the previous owner, did 356 00:20:22,960 --> 00:20:25,680 Speaker 1: he do any did he do any of the ignition coils? 357 00:20:25,680 --> 00:20:28,919 Speaker 1: Are they all original? Did he put dielectric rease inside 358 00:20:28,920 --> 00:20:31,399 Speaker 1: the boots of the ignition coils because that helps to 359 00:20:31,400 --> 00:20:35,119 Speaker 1: seal the coil around, all right? Or if it does, right, 360 00:20:35,160 --> 00:20:37,119 Speaker 1: if the rubber boot is getting dried out, is it 361 00:20:37,119 --> 00:20:39,399 Speaker 1: a misfire, you know, coming out through the top of 362 00:20:39,400 --> 00:20:43,000 Speaker 1: the plug, shooting out sideways, excuse me, shooting out sideways 363 00:20:43,040 --> 00:20:45,640 Speaker 1: and grounding. There is the spark occurring outside the cylinder, 364 00:20:45,680 --> 00:20:48,639 Speaker 1: not inside. You know, if we look at fuel trim 365 00:20:48,760 --> 00:20:52,000 Speaker 1: and we know what we're looking at, let's say, let's 366 00:20:52,040 --> 00:20:56,000 Speaker 1: say this is a misfire. When this happens, right, and 367 00:20:56,040 --> 00:20:58,200 Speaker 1: we're watching fuel trim, Which way do you think fuel 368 00:20:58,200 --> 00:21:01,639 Speaker 1: trim is gonna go up under a mis fire? What 369 00:21:01,680 --> 00:21:05,119 Speaker 1: do you think it's gonna show you? Oh? I don't know. 370 00:21:05,280 --> 00:21:07,960 Speaker 1: It's gonna show you more air, right, it's gonna show 371 00:21:08,000 --> 00:21:12,280 Speaker 1: you a lean right, it can't it can't show you fuel, right, 372 00:21:12,320 --> 00:21:14,720 Speaker 1: But an oxygen sensor, which is where part of where 373 00:21:14,760 --> 00:21:18,040 Speaker 1: fuel trim comes from. The oxygen sensor senses what oxygen. 374 00:21:18,680 --> 00:21:21,040 Speaker 1: So if there's if there's an excess of oxygen in 375 00:21:21,080 --> 00:21:23,800 Speaker 1: the in the cylinder, it bypassed, it passes past the 376 00:21:23,840 --> 00:21:26,360 Speaker 1: O two censor. It's gonna sit there and say, hey, 377 00:21:26,400 --> 00:21:28,280 Speaker 1: where all this extra oxygen can come from? Boom, It's 378 00:21:28,280 --> 00:21:30,920 Speaker 1: gonna change its reading and that's gonna excuse short term 379 00:21:30,960 --> 00:21:34,399 Speaker 1: fuel trim. So you know, I'd be curious, all right, 380 00:21:34,480 --> 00:21:36,080 Speaker 1: if all I have to work with this fuel trim, 381 00:21:36,119 --> 00:21:38,879 Speaker 1: I'd be curious what where my fuel trim numbers go 382 00:21:38,880 --> 00:21:41,760 Speaker 1: when this problem happens. But fortunately that's not all we 383 00:21:41,840 --> 00:21:45,720 Speaker 1: got to work with, all right, So I'd be curious too. 384 00:21:46,000 --> 00:21:48,400 Speaker 1: We look at fuel trim um if we can look 385 00:21:48,440 --> 00:21:51,400 Speaker 1: at that a stream, what's the mass airflow sensor doing 386 00:21:51,400 --> 00:21:56,280 Speaker 1: when this problem happens? Can the mass airflow sensor report fuel? Can? 387 00:21:56,320 --> 00:21:58,879 Speaker 1: We can it report full power if we put our 388 00:21:58,880 --> 00:22:00,840 Speaker 1: foot through the headlights, so to speaking, We look at 389 00:22:00,840 --> 00:22:05,000 Speaker 1: calculated load. Calculated load is a measurement based on other 390 00:22:05,040 --> 00:22:07,560 Speaker 1: things going on in the engine, on how much do 391 00:22:07,640 --> 00:22:09,560 Speaker 1: rest the engine is under and how much air The 392 00:22:09,760 --> 00:22:12,560 Speaker 1: mass airflow sensor can push through it or be pulled through. 393 00:22:13,240 --> 00:22:17,399 Speaker 1: All right, where does it go? A good calculated load number. 394 00:22:17,560 --> 00:22:19,199 Speaker 1: It's sort of like you if they, if they, if 395 00:22:19,240 --> 00:22:21,000 Speaker 1: they put you up on the treadmill and major run, 396 00:22:21,080 --> 00:22:23,440 Speaker 1: especially after that bacon and egg breakfast this morning, Gary, 397 00:22:23,480 --> 00:22:25,879 Speaker 1: we gotta watch that sausage one day, bake in the next. 398 00:22:26,960 --> 00:22:29,000 Speaker 1: All right, if they, if they did that to you, 399 00:22:29,160 --> 00:22:31,040 Speaker 1: how well could your run? They would measure your air 400 00:22:31,080 --> 00:22:32,800 Speaker 1: and take and tell you whether or not you're you know, 401 00:22:32,840 --> 00:22:34,760 Speaker 1: you have the potential for a heart attack. God forbid. 402 00:22:34,800 --> 00:22:37,520 Speaker 1: But you get my point, right, So we can look 403 00:22:37,560 --> 00:22:40,800 Speaker 1: at calculated load. That. The other neat thing we can 404 00:22:40,800 --> 00:22:43,080 Speaker 1: do with a good scan tool, all right, in the 405 00:22:43,080 --> 00:22:45,879 Speaker 1: hands of a smart technician is look at something called 406 00:22:45,920 --> 00:22:52,040 Speaker 1: mode six. Mode six, all right, is you know you 407 00:22:52,119 --> 00:22:53,960 Speaker 1: ever wonder how do you know when you're getting sick? 408 00:22:53,960 --> 00:22:56,880 Speaker 1: You ever get sick? You've been sick, right, You've had cold? 409 00:22:57,040 --> 00:22:59,600 Speaker 1: Right Monday you feel kind of crummy, and Tuesday you 410 00:22:59,600 --> 00:23:02,639 Speaker 1: feel person Wednesday you know you're you're sneezing and coughing. 411 00:23:02,640 --> 00:23:05,520 Speaker 1: You're sick. Right, Well, a card does A card does 412 00:23:05,560 --> 00:23:07,600 Speaker 1: it the same way, but it uses you know it 413 00:23:07,680 --> 00:23:09,920 Speaker 1: uses its data. It does a self test every time 414 00:23:09,960 --> 00:23:13,120 Speaker 1: you started, and the measurements for these self tests are 415 00:23:13,160 --> 00:23:16,960 Speaker 1: done inside the vehicle software in a section called mode six. 416 00:23:17,040 --> 00:23:20,840 Speaker 1: Mode six is the self test portion of the vehicle computer. 417 00:23:21,800 --> 00:23:25,239 Speaker 1: So in the hands of a good technician and a 418 00:23:25,280 --> 00:23:27,440 Speaker 1: good scan tool, we can go in and look at 419 00:23:27,440 --> 00:23:31,240 Speaker 1: mode six and look at the individual tests again back 420 00:23:31,280 --> 00:23:34,200 Speaker 1: to how does a code set? Right? What what fails 421 00:23:34,200 --> 00:23:37,320 Speaker 1: and creates a code? It looks at mode six. If 422 00:23:37,359 --> 00:23:40,240 Speaker 1: if fuel trim is being calculated and being calculated and 423 00:23:40,240 --> 00:23:43,359 Speaker 1: being calculated, it comes out it's never gonna set a 424 00:23:43,359 --> 00:23:47,880 Speaker 1: fault code for lean fuel trim, right. If if a misfire, 425 00:23:48,560 --> 00:23:53,760 Speaker 1: if acceptable misfire is ten thousand per cycle, Now that's 426 00:23:53,760 --> 00:23:57,040 Speaker 1: too much, a thousand per cycle, all right, and even 427 00:23:57,080 --> 00:23:59,880 Speaker 1: that's a lot, all right. If it's it, If it's 428 00:24:01,560 --> 00:24:03,080 Speaker 1: is it going to tell to set a fault code 429 00:24:03,119 --> 00:24:08,879 Speaker 1: for for misfire. No, you may feel it, right, you 430 00:24:08,880 --> 00:24:10,960 Speaker 1: may feel it, but it's it's never gonna set it. 431 00:24:11,880 --> 00:24:14,960 Speaker 1: So if we can look at mode six and start 432 00:24:15,000 --> 00:24:18,040 Speaker 1: to interpret some of that data, we may see things 433 00:24:18,080 --> 00:24:20,480 Speaker 1: that gives us you know, gee, it's not setting a 434 00:24:20,520 --> 00:24:24,560 Speaker 1: fault code for misfire but I've got two cylinders that 435 00:24:24,600 --> 00:24:27,119 Speaker 1: are starting to act up way beyond their normal limit. 436 00:24:28,160 --> 00:24:30,040 Speaker 1: All right, so we don't have to wait for the 437 00:24:30,080 --> 00:24:32,720 Speaker 1: car to break. The other thing I want to talk about, 438 00:24:32,720 --> 00:24:34,320 Speaker 1: There's two more things, and then I'll let you go. 439 00:24:35,080 --> 00:24:37,720 Speaker 1: Is this. This is a variable valve timing engine. This 440 00:24:37,800 --> 00:24:41,520 Speaker 1: is a vc T motors a five four. Make make 441 00:24:41,560 --> 00:24:45,760 Speaker 1: sure the oil level is correct? All right? Does the 442 00:24:45,800 --> 00:24:49,040 Speaker 1: engine make any noise and he rattles and any ticks 443 00:24:49,280 --> 00:24:53,360 Speaker 1: and he has it does have a chick like it's 444 00:24:53,359 --> 00:24:57,280 Speaker 1: like a tap it or something like that. Ar okay, right, 445 00:24:57,359 --> 00:24:59,320 Speaker 1: like a like a sixty three Chevy and pala. When 446 00:24:59,320 --> 00:25:00,760 Speaker 1: you showed up on the date and the lifter was 447 00:25:00,760 --> 00:25:02,359 Speaker 1: tapping in there, her father stuck his head out the 448 00:25:02,400 --> 00:25:07,040 Speaker 1: door and go, what's wrong with that thing? Well? You know, um, yeah, yeah, yeah, 449 00:25:07,119 --> 00:25:09,520 Speaker 1: same thing I remember those days. Uh. Make sure the 450 00:25:09,520 --> 00:25:12,119 Speaker 1: oil level is good. You know, we could have we 451 00:25:12,160 --> 00:25:14,840 Speaker 1: could have a variable valve timing issue or or a 452 00:25:14,920 --> 00:25:19,919 Speaker 1: valve control sonoid issue that's affecting engine performance, advancing or 453 00:25:19,920 --> 00:25:24,119 Speaker 1: retarding camshafts incorrectly. Not enough, not enough to set a 454 00:25:24,119 --> 00:25:27,040 Speaker 1: fault code. Again, We're back to everything has a number 455 00:25:27,040 --> 00:25:30,960 Speaker 1: where it sets right, so you know it's it's looking 456 00:25:31,119 --> 00:25:33,800 Speaker 1: looking for a code, is okay? You know what it's 457 00:25:33,800 --> 00:25:36,000 Speaker 1: like going to the doctor and saying, Doc, I I'm 458 00:25:36,040 --> 00:25:38,440 Speaker 1: losing power. I weeze and I squeeze and I sneeze, 459 00:25:38,440 --> 00:25:40,760 Speaker 1: and you know, I just feel like I just feel terrible. 460 00:25:40,800 --> 00:25:42,640 Speaker 1: But they can't find anything wrong with you. They gotta 461 00:25:42,680 --> 00:25:45,719 Speaker 1: dig deeper. Somebody's gotta dig deeper, maybe beyond your limits. 462 00:25:45,720 --> 00:25:49,360 Speaker 1: So you gotta find a real diagnostician. All right, I'd 463 00:25:49,359 --> 00:25:54,000 Speaker 1: be curious, okay if if this only happens in high gear, 464 00:25:54,400 --> 00:25:57,520 Speaker 1: and I'm assuming you mean high gear in overdrive, if 465 00:25:57,520 --> 00:26:00,439 Speaker 1: you step on the brake, if you step on break 466 00:26:00,920 --> 00:26:05,040 Speaker 1: all right and knock knock the trans out of overdrive, 467 00:26:05,200 --> 00:26:08,280 Speaker 1: not high gear overdrive. And the way you're gonna tell 468 00:26:08,280 --> 00:26:11,119 Speaker 1: this is cruising along at sixty five, the RPM is 469 00:26:11,160 --> 00:26:14,720 Speaker 1: gonna be a oh, I don't know PM, right, whatever 470 00:26:14,720 --> 00:26:17,320 Speaker 1: the number is. If you tap the brake, If you 471 00:26:17,359 --> 00:26:20,359 Speaker 1: tap the brake without stepping on the gas, does the 472 00:26:20,520 --> 00:26:23,600 Speaker 1: RPM jump showing that it changed that of gear? And 473 00:26:23,640 --> 00:26:26,199 Speaker 1: if at that moment you step on the gas and 474 00:26:26,240 --> 00:26:29,199 Speaker 1: the problem is still there, it's got nothing to do 475 00:26:29,240 --> 00:26:30,920 Speaker 1: with being in high gear. It's got to do more 476 00:26:30,960 --> 00:26:32,800 Speaker 1: with the engine than the trans If it's the other 477 00:26:32,840 --> 00:26:35,119 Speaker 1: way around, I'm starting to think maybe I've got a 478 00:26:35,119 --> 00:26:37,480 Speaker 1: torqu converter that's not releasing. And now I've got to 479 00:26:37,480 --> 00:26:41,240 Speaker 1: go consider that and look at that. Aren't you sorry 480 00:26:41,240 --> 00:26:47,959 Speaker 1: you called? Aren't you sorry you called me? You know, well, 481 00:26:48,000 --> 00:26:50,520 Speaker 1: it's definitely the problem is definitely somewhere between the headlights 482 00:26:50,520 --> 00:26:53,760 Speaker 1: and the tail lights. All right, uh, you know, but 483 00:26:53,880 --> 00:26:56,320 Speaker 1: it needs it needs a little bit of diagnosing, and 484 00:26:56,359 --> 00:26:58,639 Speaker 1: it needs, you know, to be considered. And like I said, 485 00:26:58,720 --> 00:27:01,120 Speaker 1: just take a look at a plug ug Let's find 486 00:27:01,119 --> 00:27:02,800 Speaker 1: out what did he put in there? Did he? You know? 487 00:27:02,880 --> 00:27:04,760 Speaker 1: I see all kinds of weird things they put in 488 00:27:04,800 --> 00:27:07,679 Speaker 1: performance spark plugs that they bought off the back of 489 00:27:07,720 --> 00:27:09,879 Speaker 1: a catalog somewhere, and they are these are supposed to 490 00:27:09,920 --> 00:27:11,600 Speaker 1: be the best thing since slice bread. You know what. 491 00:27:12,119 --> 00:27:14,280 Speaker 1: Nothing in that vehicle works as good as a motorcraft. 492 00:27:14,320 --> 00:27:16,200 Speaker 1: I put a motorcraft spark plug in that and call 493 00:27:16,240 --> 00:27:18,160 Speaker 1: it a day, and then I'd start thinking about coils. 494 00:27:18,200 --> 00:27:20,000 Speaker 1: But I want to go through mode six. I want 495 00:27:20,000 --> 00:27:22,119 Speaker 1: to go through the rest of it, So, um, do 496 00:27:22,240 --> 00:27:25,679 Speaker 1: those things if I if I've confused you or baffled you. 497 00:27:25,800 --> 00:27:27,720 Speaker 1: By all means, you can listen to the podcast of 498 00:27:27,760 --> 00:27:30,800 Speaker 1: this after the show becomes a reality and about the 499 00:27:30,840 --> 00:27:33,239 Speaker 1: twenty minutes and you know your mechanic can listen to it. 500 00:27:33,400 --> 00:27:35,120 Speaker 1: And I'm glad to talk to you again. By all means, 501 00:27:35,160 --> 00:27:37,959 Speaker 1: give us a call back. All right, kiddo. All right, 502 00:27:38,880 --> 00:27:41,600 Speaker 1: you're very welcome, sir. You'd be well and uh eat better? Gary, 503 00:27:41,640 --> 00:27:43,080 Speaker 1: I want you a little longer. I want to take 504 00:27:43,080 --> 00:27:45,120 Speaker 1: care of you. So, um, you have yourself a good 505 00:27:45,119 --> 00:27:49,040 Speaker 1: holiday season, be well. Zero nine zero. The car doctors 506 00:27:49,080 --> 00:27:54,160 Speaker 1: coming back right after this. What this car is automatic? 507 00:27:55,240 --> 00:28:11,240 Speaker 1: It's systematic, it's hard, maddic. What's breeze lightning? You know, 508 00:28:11,280 --> 00:28:13,080 Speaker 1: about five years from now or ten years from now, 509 00:28:13,080 --> 00:28:14,720 Speaker 1: the kids are gonna go, what's a four barrel car? 510 00:28:14,960 --> 00:28:17,000 Speaker 1: They're probably doing it already. Who am I kid? Let's 511 00:28:17,000 --> 00:28:18,960 Speaker 1: go and talk to Let's go talk to kennon Vermont 512 00:28:19,040 --> 00:28:22,480 Speaker 1: fourteen GMC Sierra and what's going on here? Ken? Welcome 513 00:28:22,480 --> 00:28:25,600 Speaker 1: to the car doctor, sir. How can I help? Hey? 514 00:28:25,640 --> 00:28:31,160 Speaker 1: Thanks so much for handing rock. Welcome. What's going on? Um? 515 00:28:31,200 --> 00:28:34,040 Speaker 1: I was into wheel drive. I was backing in one 516 00:28:34,480 --> 00:28:36,800 Speaker 1: area where it was slippery and the leaves and so 517 00:28:36,960 --> 00:28:40,880 Speaker 1: forth engaged the four wheel drive. It's the turned off, 518 00:28:42,280 --> 00:28:47,760 Speaker 1: UM selection And I went into four will low And 519 00:28:47,960 --> 00:28:50,200 Speaker 1: when I went back out of four whell low, it 520 00:28:50,320 --> 00:28:53,440 Speaker 1: didn't act like it came out, but apparently it only 521 00:28:53,480 --> 00:28:57,280 Speaker 1: came out to four wheel I and the light came 522 00:28:57,400 --> 00:29:01,840 Speaker 1: up went out on the control pan, and shortly thereafter 523 00:29:01,920 --> 00:29:04,040 Speaker 1: I got an error on the dash It said service 524 00:29:04,080 --> 00:29:09,200 Speaker 1: four world drive. Did you diagnose or pull any fault codes? 525 00:29:09,280 --> 00:29:10,680 Speaker 1: Did you were able to get it out of four 526 00:29:10,720 --> 00:29:14,920 Speaker 1: wheel drivers? It's stuck in four wheel drive or it's 527 00:29:15,000 --> 00:29:18,880 Speaker 1: still in four wheel high? Um? I my scanner will 528 00:29:18,920 --> 00:29:22,200 Speaker 1: not pull those codes for transport case right because you 529 00:29:22,200 --> 00:29:26,320 Speaker 1: have to get into the TC, the transfer case control module. UM. Okay, 530 00:29:26,520 --> 00:29:29,680 Speaker 1: so you know, let's let's let's trouble shoot in the 531 00:29:29,760 --> 00:29:32,440 Speaker 1: dark a little bit. What what this probably is? How 532 00:29:32,480 --> 00:29:37,920 Speaker 1: many miles were on this about? About? Okay? Um? And 533 00:29:37,960 --> 00:29:39,600 Speaker 1: you have you? Have you taken it back to the 534 00:29:39,600 --> 00:29:41,840 Speaker 1: dealer for any four wheel drive related problems? Have you 535 00:29:41,840 --> 00:29:47,000 Speaker 1: owned the Carson's now since now? No? I haven't. Okay, 536 00:29:47,200 --> 00:29:50,280 Speaker 1: get your hands on GM bulletin p I P. Fifty 537 00:29:50,320 --> 00:29:55,200 Speaker 1: three sixty nine Charlie. I was just looking at that. Yeah, 538 00:29:55,400 --> 00:29:57,960 Speaker 1: service four wheel drive error message and it's it's it's 539 00:29:58,040 --> 00:30:02,640 Speaker 1: Charlie zero. And they're talking about reprogramming the software because 540 00:30:02,640 --> 00:30:08,000 Speaker 1: it worked fine up until now, correct, right, you know, 541 00:30:08,040 --> 00:30:10,400 Speaker 1: it's it's not this is the first time the problems happened, 542 00:30:11,240 --> 00:30:14,040 Speaker 1: you know, I look at I look. Is this the 543 00:30:14,040 --> 00:30:19,360 Speaker 1: first time the problems happened? It might have happened another time, 544 00:30:19,400 --> 00:30:22,560 Speaker 1: but it did reset itself. Okay. Have you tried backing 545 00:30:22,680 --> 00:30:25,000 Speaker 1: up while you've while you're shifting to two wheel drive 546 00:30:25,040 --> 00:30:29,240 Speaker 1: to see if it releases? Yeah, And the problem is 547 00:30:29,280 --> 00:30:33,040 Speaker 1: that the the dial is absolutely dead. There's no lights on. 548 00:30:33,120 --> 00:30:37,840 Speaker 1: It doesn't seem to act at all. Okay, So we 549 00:30:37,960 --> 00:30:40,360 Speaker 1: gotta know, we have we have to know why we 550 00:30:40,440 --> 00:30:43,480 Speaker 1: have this message. We've got to get it scanned, all right. 551 00:30:43,920 --> 00:30:47,720 Speaker 1: You know, is the transfer case control module offline? Did 552 00:30:47,720 --> 00:30:50,840 Speaker 1: it pop a fuse somehow? You know, over the course 553 00:30:50,880 --> 00:30:52,840 Speaker 1: of the summer. Did an animal chew on some part 554 00:30:52,880 --> 00:30:55,160 Speaker 1: of the wiring harness? And I'm really being obscure here, 555 00:30:55,200 --> 00:30:57,760 Speaker 1: but I'm just you know, thinking of all the possibilities. 556 00:30:57,840 --> 00:30:59,640 Speaker 1: Do we have something that rubbed through and you put 557 00:30:59,640 --> 00:31:01,680 Speaker 1: it in for wheel drive, and now it popped the 558 00:31:01,680 --> 00:31:03,680 Speaker 1: fuse and that's why the light is dead. You know, 559 00:31:03,760 --> 00:31:06,080 Speaker 1: there's there's there's a half a dozen reasons why we 560 00:31:06,120 --> 00:31:09,520 Speaker 1: could have this. But I want to also focus a 561 00:31:09,520 --> 00:31:13,040 Speaker 1: little bit on on you know, C zero Pit fifty 562 00:31:13,080 --> 00:31:17,680 Speaker 1: three sixty nine, Charlie, because that talks about programming. Any 563 00:31:17,720 --> 00:31:20,880 Speaker 1: time I see programming updates or software updates for the 564 00:31:21,040 --> 00:31:25,160 Speaker 1: for any vehicles controlled area that I'm working on, I 565 00:31:25,440 --> 00:31:28,000 Speaker 1: tend to read that bulletin thoroughly, and you know, could 566 00:31:28,040 --> 00:31:29,960 Speaker 1: this supply? And do I want to get this done? 567 00:31:29,960 --> 00:31:34,000 Speaker 1: And the fault code that they're talking about occurs because 568 00:31:34,120 --> 00:31:36,960 Speaker 1: their concerned the issue was as the vehicle's age, the 569 00:31:37,040 --> 00:31:41,240 Speaker 1: software that's in there was too widespread and it created 570 00:31:41,280 --> 00:31:44,080 Speaker 1: problems just like you're describing where somebody shifted it into 571 00:31:44,160 --> 00:31:48,000 Speaker 1: four wheel drive and it's saw a momentary delay or 572 00:31:48,000 --> 00:31:50,800 Speaker 1: it did not see correct response verifying that it wasn't 573 00:31:50,800 --> 00:31:53,120 Speaker 1: four wheel drive or the request to come out of 574 00:31:53,120 --> 00:31:58,280 Speaker 1: four wheel drive. And they've tightened up the electronic adjustment 575 00:31:58,320 --> 00:32:00,360 Speaker 1: if you if you want to think of it like that. 576 00:32:00,400 --> 00:32:03,280 Speaker 1: They've they've you know, they've accounted for aging and they 577 00:32:03,840 --> 00:32:07,080 Speaker 1: won't let the fault code occur. The the virtue of 578 00:32:07,160 --> 00:32:11,880 Speaker 1: the fault code being there could be preventing the vehicle 579 00:32:11,920 --> 00:32:15,560 Speaker 1: from coming out of four wheel all right, you know, 580 00:32:15,680 --> 00:32:18,719 Speaker 1: they may be limiting operation there. It's it's the same idea. 581 00:32:19,200 --> 00:32:21,640 Speaker 1: If you've ever had a vehicle with drive by wire 582 00:32:21,640 --> 00:32:24,240 Speaker 1: where there's no mechanical throttle linkage, where it's all done 583 00:32:24,240 --> 00:32:27,080 Speaker 1: by computer, if it sets a drive by wire fault, 584 00:32:27,120 --> 00:32:29,000 Speaker 1: it will limit and put you in limp mode and 585 00:32:29,400 --> 00:32:31,160 Speaker 1: just to get you home. So it's the same thing. 586 00:32:31,920 --> 00:32:34,120 Speaker 1: So the first thing we've got to get we've got 587 00:32:34,120 --> 00:32:36,560 Speaker 1: to get that scanned. We've got to see what's going 588 00:32:36,640 --> 00:32:39,480 Speaker 1: on as far as information, you know what what fault 589 00:32:39,520 --> 00:32:42,760 Speaker 1: code is that, and then diagnose it accordingly because it's 590 00:32:42,800 --> 00:32:44,520 Speaker 1: how you drive this. I wouldn't drive it too four 591 00:32:44,600 --> 00:32:47,160 Speaker 1: obviously in four wheel drive unless you're on snow and 592 00:32:47,200 --> 00:32:49,080 Speaker 1: I don't think you have that up there Vermont Way yet. 593 00:32:49,080 --> 00:32:51,240 Speaker 1: So UM do those things. If you need more, I'm 594 00:32:51,240 --> 00:32:53,080 Speaker 1: here for you and good luck. Keep me posted. I'm 595 00:32:53,160 --> 00:32:54,880 Speaker 1: ring any in the car, doctor, I'll be back right 596 00:32:54,920 --> 00:33:13,920 Speaker 1: after this. Don't go away second hang, welcome back, run 597 00:33:13,960 --> 00:33:16,560 Speaker 1: any of the car. Doctor. Dodge writes in from Delaware. 598 00:33:16,560 --> 00:33:21,080 Speaker 1: He says, Hey, Ron, ev Cars and Trucks Way thirty Morris. 599 00:33:21,160 --> 00:33:25,920 Speaker 1: He says, Evie Cars and Trucks thirty vehicle weight increased 600 00:33:26,000 --> 00:33:29,600 Speaker 1: greatly plays into tired design cost and where uh yeah, 601 00:33:29,720 --> 00:33:31,959 Speaker 1: excellent point, right, And then you have to stop to think, so, 602 00:33:32,000 --> 00:33:34,600 Speaker 1: are we're gonna have to use more rubber, different design tires? 603 00:33:35,080 --> 00:33:37,240 Speaker 1: You know, what's the cost factor going to be there? 604 00:33:37,880 --> 00:33:40,760 Speaker 1: And um, you know at what return rate and and 605 00:33:40,800 --> 00:33:44,560 Speaker 1: what accessibility? So you just I don't know. I keep 606 00:33:44,600 --> 00:33:47,960 Speaker 1: coming back to we're we're doing EVS. I you know, 607 00:33:48,000 --> 00:33:49,400 Speaker 1: I don't say it's gonna be a fat but I 608 00:33:49,400 --> 00:33:51,520 Speaker 1: don't think it's gonna look like they're expecting it to look. 609 00:33:52,000 --> 00:33:55,040 Speaker 1: I'm thinking more and more. Mr Mark Mills is absolutely correct, 610 00:33:55,200 --> 00:33:58,840 Speaker 1: quick to said email, Hey Ron, frustrating problem four Escape 611 00:33:58,840 --> 00:34:01,000 Speaker 1: with two thousand miles has a light that says the 612 00:34:01,040 --> 00:34:04,080 Speaker 1: park break limited function services required along with the lightning 613 00:34:04,120 --> 00:34:06,320 Speaker 1: bolt symbol. Sometimes when I shut the card door, it 614 00:34:06,320 --> 00:34:07,640 Speaker 1: comes on. I took it to the deally. They put 615 00:34:07,720 --> 00:34:09,799 Speaker 1: up on a host. They couldn't find anything. They said 616 00:34:09,800 --> 00:34:12,160 Speaker 1: they do some research. I have an appointment mid December. 617 00:34:12,280 --> 00:34:15,040 Speaker 1: This comes to us from Vicky no no, no state 618 00:34:15,120 --> 00:34:18,640 Speaker 1: or town given. Any help would be appreciated. You know what, Vicky, 619 00:34:18,680 --> 00:34:20,360 Speaker 1: it sounds to me like there's more of an electrical 620 00:34:20,360 --> 00:34:23,480 Speaker 1: problem than a mechanical fault here. I would be scanning 621 00:34:23,520 --> 00:34:26,319 Speaker 1: this to look to see if the modules that are 622 00:34:26,360 --> 00:34:28,480 Speaker 1: involved in the park control function because that is an 623 00:34:28,480 --> 00:34:32,040 Speaker 1: electronic parking break or an electric parking break. If those 624 00:34:32,080 --> 00:34:34,680 Speaker 1: modules are online and talking, if the computers are down, 625 00:34:34,760 --> 00:34:38,520 Speaker 1: it's gonna see that as a loss of parking break functionality, 626 00:34:38,560 --> 00:34:41,399 Speaker 1: and it's gonna tell you that service is required. So 627 00:34:41,520 --> 00:34:43,719 Speaker 1: I'm willing to bet that there are fault codes here 628 00:34:44,000 --> 00:34:48,440 Speaker 1: or there's a communication fault with the parking break module, 629 00:34:48,719 --> 00:34:50,560 Speaker 1: and um, you know that's gonna be what you've got 630 00:34:50,560 --> 00:34:52,839 Speaker 1: to deal with. So and this one from Tom writes 631 00:34:52,880 --> 00:34:54,600 Speaker 1: in Ron, I need to delete the OUTO stop function 632 00:34:54,640 --> 00:34:56,920 Speaker 1: on my twenty nineteen Chevy Equinox. I don't want the 633 00:34:56,920 --> 00:34:58,560 Speaker 1: engine to shut off with every stop. How can this 634 00:34:58,640 --> 00:35:02,240 Speaker 1: be eliminated? You know what? On Uh, it's getting harder 635 00:35:02,239 --> 00:35:04,759 Speaker 1: and harder if the vehicle manufacturer doesn't allow it. There 636 00:35:04,800 --> 00:35:07,880 Speaker 1: are some kids coming into the marketplace that are doing it, 637 00:35:07,920 --> 00:35:10,359 Speaker 1: that are putting the vehicle into a false state. So 638 00:35:10,400 --> 00:35:12,560 Speaker 1: that it won't happen. You've got to do a research 639 00:35:12,600 --> 00:35:15,520 Speaker 1: for it because it's on an individual vehicle manufacturer making 640 00:35:15,600 --> 00:35:18,520 Speaker 1: model basis. There's no flat way simple way to do 641 00:35:18,560 --> 00:35:20,560 Speaker 1: it on every vehicle, So you gotta do a little 642 00:35:20,600 --> 00:35:22,800 Speaker 1: bit more homework until the next time. I'm Rondini in 643 00:35:22,840 --> 00:35:26,920 Speaker 1: the car doctor, reminding you the mechanics aren't expensive, they're priceless. 644 00:35:26,960 --> 00:35:27,239 Speaker 1: See you