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Professional Automotive Repair Technical Discussions for May 19, 2015 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2007 Cadillac DTS 4.6L Suspension VIN: 1GEEH96Y67 this caddy limo came in with service suspension and tire monitor,,,customer isnt concerned with tire monitor but is with suspension...scanned and it has code co711 level control air pressure sensor circuit malfunction...alldata sez to clear code ,turn car on,e... |
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| 2003 Chevrolet Malibu 3.1L No Start, no pulse VIN: 1G1ND52JX3 At wits end.Pcm will not pulse injectors to ground.My scope skills are novice at best, mostly as a go-no go guage (is there a signal or not?).Have a 0-5v square wave from cam sensor at pcm,what appear to be good signals from both crank sensors.Am not versed in... Trouble codes: P1189 (oil pressure switch circuit) |
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| 2004 Chevrolet Trailblazer LS 4.2L Cuts out VIN: 1GNES16S24 Customer brought truck in ststing that when she turn on the A/C and come to a stop that the truck cuts off, so we scan the truck and found no codes. but what we noticed is that the idle is 0 and the oil pressuer is past 80 all the way over to the end, but when... |
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| 1993 GMC G3500 Magnavan 6.2L Motor VIN: 181177BLUE This is a GMC V8 Diesel 6.2L in a Value Van Chassis short school bus. Sometimes the engine cranks over slowly or very slowly and is difficult to start. Usually first start in morning is good but after engine warms a bit it is harder to start. The batteries wer... |
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| 1995 GMC Sonoma SLE 2.2L No Start VIN: 1GTCS1943S This one has me stumpted. A good friend of mine ownes this. It started running bad so he figured it was time to do a tune up this is when he did the plugs and wires. Well it would not start. He checked for spark and it would come and go very eratic. This is wh... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2004 Cadillac SRX 3.6L Cuts out VIN: 1GYEE63794 Since I could not duplicate the complaint, and none of the codes were current, I cleaned the throttle body connector, the computer connectors, applied grease to those connectors, and cleaned the computer grounds. It has been one week, and I have not heard back... Trouble codes: P0221 (App senor2 out of range), P2231 (HO2S b1s1 signal shorted to heater), P2234 (HO2S b2s1 signal shorted to heater), P0102 (MAF ckt signal low). |
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| 1999 Chevrolet Blazer 4.3L No Start, security light on VIN: 1GNDT13W0X Thanks guys for your suggestions. I, did not find any faults with the multi switch, BCM or harness/ground. Intermittent condition and could not find source of short. Installed mini 10 amp circuit breaker in place of fuse. Have not heard back from customer. Trouble codes: P1626, U1064. |
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| 2001 Chevrolet Impala 3.4L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire, Poor Fuel Economy VIN: 2G1WF55E61 well, at the end, the car is still sitting here. We checked everything including the camshaft and push rods. I hate throwing parts at a car but we ended up replacing them since everything else checked out (bosses request). Car did the same thing afterwards. Fr... Trouble codes: P0300. |
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| 2003 Chevrolet Silverado 1500 5.3L MIL Lamp on VIN: 2GCEK19TX3 Ran new wires from tac module to throttle body routing them away from all ignition coils and injectors. No news is good news because customer has not returned and I know he would if he still had problems. Thank you all who took the time to reply. Trouble codes: P2135, P0120. |
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| 2004 Chevrolet Trailblazer LS 4.2L Front differential VIN: 1GNDT13S84 Thanks to everyone who replied. This vehicle is doing good now. I had very little experience with this four wheel drive but turns out the actuator case on the right side of the oil pan was seized in the oil pan. After using penetrating oil and a 5 foot pry ba... |
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| 2006 Chevrolet Cobalt LT 2.2L MIL Lamp on, lack of power VIN: 1G1AL15F16 Thanks to all that responded. We did locate the 40 cavity connector and cleaned as per tsb. The problem reoccured intermittently. The customer is returning to the gm dealer for possible pcm replacement and reflash. Thanks again for all your help. Kevin Trouble codes: P2138 (Accelerator pedal position sensor 1-2 correlation). |
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| 2009 GMC Sierra 2500 HD SLE 6.0L Safety VIN: 1GDHC44K19 Thanks for all the tips and information everyone. After talking to Tis2Web and our local dealership on several different occasions about all the issues we were having, we came to the conclusion that someone had returned the module after programming it with the... |
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