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Professional Automotive Repair Technical Discussions for April 10, 2014 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2005 Chevrolet Silverado 2500 HD 6.0L injectors VIN: 1GCHK24U25 hello all thanx in advance for your help.this vehicle came in as a hard start when cold replace fuel pump due to psi readings below 40 psi. fuel psi stays stedy @ 55 psi now. still when cold has hard starting,runs very low rpms and logs missfires on 1,4,5,7 bu... |
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| 2007 Chevrolet Silverado 1500 LTZ 5.3L vavle body VIN: 2GCEC19J77 I am hoping for some insight on this 4l60e. I have not yet been able to duplicate the problem but the customer claims that while she is sitting at a traffic light with the trans in drive she will suddenly feel a good stiff "bump" almost as if someone had run i... |
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| 2003 GMC Safari 4.3L Misfire, MIL Lamp on VIN: 1GKDM19X23 HI.I have a miss fire # 3 cylinder @ idle in closed loop warm.Compression test leak down test all check good.Ignition @ fuel tested good.The miss fire will go away when I hold pressure on # 3 cylinder exhaust rocker arm running @ idle.I already replaced all th... Trouble codes: P0303 (Miss fire) |
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| 2007 GMC Acadia SLT 3.6L trans VIN: 1GKEV23707 Hello GM tech's. I've replaced this automatic trans and I'm curious if I need to reprogram the TCM to the PCM in order to get proper trans function. I know I need to perform an adaptive learn procedure but I'm not too sure if a reflash is necessary to complete... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2007 Pontiac Grand Prix GT 3.8L Shifting VIN: 2G2WR55447 Line pressure is good, no reverse, checked input speed on scanner = 0. Broken input shaft. Probably aggravated by a bad pressure control solenoid. |
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