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Professional Automotive Repair Technical Discussions for November 10, 2015 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2000 Buick LeSabre Limited 3.8L Idle VIN: 1G4HR54K7Y When you start this car the first time in the morning it will idle at 1300 RPMs for about ten minutes until it warms up without touching anything, but desired RPM is 1300 RPMs, so when the guy puts it in reverse it tries to rip the motor mount out, if you star... |
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| 1997 Chevrolet Express 1500 5.7L Poor Idle Quality, MIL Lamp on VIN: 1GNFG15R8V I starting to pull my hair out !!! I would like to keep what little hair I have. The van first came in with a hard start. Did a fuel pressure test an it failed. Put a new gm fuel pump an fuel filter in truck. We also said that the fuel pressure regulator was l... Trouble codes: P1621, P0507 |
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| 2004 Chevrolet Silverado 2500 HD LS 6.0L Abs module Customer stated "service Brake System" would light up on the dash along with abs and brake light. Reprogrammed module because of bulletin for these trucks with a 2in stock body raise. Cleaned grounds under drivers door for module. Still has the same problem in... |
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| 2008 Chevrolet HHR LS 2.2L No Start VIN: 3GNDA13D08 Vehicle towed in no crank, loss of comm. with VTD. Vehicle started after second attempt to crank. Customer says "YEP, that's what it does", on a random basis. Customer service records show multiple tow ins to two different GM dealers. All four times VTD was re... Trouble codes: U2137 |
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| 2003 GMC C4500 Topkick C4V042 6.6L Airbag VIN: 1GDE4F11X3 Vehicle came in with airbag light on, after searching for SDM. Vehicle does not appear to come from factory equipped with airbags. Cannot find wiring diagrams for non-airbag vehicles. Airbag light seems to be multiplexed into data line from instrument cluster.... |
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| 2004 GMC Sierra 1500 SLE 4.8L Safety VIN: 1GTEK19VX4 This truck came in for an air bag light on. Found code B0092 but cant find any diagnostic information on it. Can anyone help me with this? I did see the tips for broken wires. I have checked them and cant find any issue with the wires. Thanks |
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| 2007 GMC Yukon XL 1500 SLT 5.3L #1 Cyl VIN: 1GKFC16067 So I'm lucky enough to get this job that nobody wants. Customer had mobile mechanic try and fix misfire #1 cyl. He gave up after new coils, wires, plugs and injector didnt fix it. Engine runs fine for 20/30 minutes. After that it will misfire on #1 cylinder. O... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2012 Chevrolet Malibu LT 2.4L J Case Fuse 30 Amp VIN: 1G1ZD5E08C all good info thank you all for your time. wayne from n.c. stated to check fuse type, slow blow required--- it appears that after initial starter and fuse, possible wrong fuse installed. i searched buss fuses online and found # pal 330 bp slow blow 30 am... |
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| 2001 GMC Sierra 2500 SL 6.0L No Start, Poor Idle Quality, Stall VIN: 1GTHK29U11 Thanks for those that took the time to respond. We scanned the crank sensor when it wasn't running and when it would run and both were the same. couldn't find anything else so we gambled on a new sensor and its fixed. Would like to know why but I guess not. On... Trouble codes: P0336. |
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| 1990 Oldsmobile 98 Regency Brougham 3.8L No Start, Poor Idle Quality, Cuts out, Misfire VIN: 1G3CW54C6L Thank you for all of the suggestions. This 90 Olds 98 had problems delivering spark. The ignition module failed melting the coil. The first mechanic replaced the 6 tower coil and the crank sensor behind the balancer pulley. I replaced the ignition module and t... Trouble codes: 27 (2nd gear switch). |
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| 2005 Saturn Vue 3.5L Hesitation, Surge, Misfire VIN: 5GZCZ53405 Thanks to all who responded. I forgot the basics on this one. The vehicle had only 12 in. of vacuum at idle. Did compression and cylinder leakage test and both passed. Customer decided not to proceed with further diagnosis. This vehicle has many other problem... Trouble codes: P0301, P0302, P0303, P0304, P0305, P0306. |
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