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Professional Automotive Repair Technical Discussions for July 11, 2012 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2008 Buick Enclave CXL 3.6L AirBag Iight VIN: 5GAEV23708 AirBag light illuminates as soon as key is turned on. Code appears immediately after clearing. B0012 Driver frontal deplyoment loop stage 1. According to Alldata and Mitchell, there are 4 "sub codes" that the modis won't narrow down. B0012 (01,02, 04, 0D). Con... |
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| 1996 Chevrolet Cavalier LS 2.2L engine VIN: 1G1JF5244T This car with fire with gas pedal to the floor and cranking it sounds like it is flooded but plugs are dry and oil is ok. Replaced ignition module with used one does the same thing. Once the scanner would not communicate then suddenly did. The Theft System lig... |
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| 1997 Chevrolet Tahoe LS 5.7L ecm fuse VIN: 1GNEK13R9V Is there anything else on this circuit I missed? Is it a grounded wire in the loom? Has anyone seen this or know of a common place to look for a problem on this series of engines. Also have eliminated the ignition switch. Thanks guys. |
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| 2001 Chevrolet Astro LS 4.3L abs VIN: 1GNEL19W61 Hello fellow techs. Am having an intermittent abs application at slow speed turning in a parking lot. No speed sensor codes. Had c0265. cleared it and has not returned. Lab scope on all 3 abs channels shows at rest of 5 km/h. Is this normal? Found TSB for clea... |
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| 2002 Chevrolet Silverado 2500 HD 6.6L No Start VIN: 1GCHK29172 When outside temp is hot ~90 degrees the vehicle is hard to start. Longer cranking times. The engine does not overheat. Truck has never died while driving. If drive for 20 or so miles and shut off for about 30 minutes it will crank but not start. When it acts ... Trouble codes: U1000 |
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| 2003 Chevrolet Astro 4.3L assist VIN: 1GCDM19X63 Hi all, I have a van with hydroboost that gearbox replaced aftermarket almost a year ago. Had developed play, so replaced under warranty again. Bled system as usual, worked fine till it heated up then very choppy assist/noise/pump was hammering. rEplaced pump ... |
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| 2005 Chevrolet Equinox LT 3.4L battery VIN: 2CNDL73F75 battery is dead every morning. customer says cooling fan would come on at random when vehicle is off, even hours after shut off. never expirienced this, just dead battery in the morning every day. checked for draw all day for two days and nothing found above .... |
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| 2006 Chevrolet Silverado 1500 LT 4.8L Electronic VIN: 2GCEK19V86 Vehicle came in for no A/C operation. Found that when a/c was requested the compressor clutch was not engaging. installed gauges found that pressures all ok. using scan tool, commanded a/c relay on and system began working. then tried turning a/c on with contr... |
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| 2008 Chevrolet Silverado 2500 HD WT 6.6L Starting VIN: 1GCHK24678 I don't know if the code set has anything to do with the "no start". When trying to start this truck, there is no power to the starter relay from the ignition. Sometimes it will energize for a split second when you turn the key off and then try and start. I ha... |
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| 2004 Pontiac Grand Am SE1 3.4L Poor Idle Quality, Surge, Cuts out, Misfire VIN: 1G2NF52E14 Vec. came complaint Hard start,runs rough,Ckeck engine light on Scan test p0300 ck miss fire data missing on all clyinders #5 the most #6 close to same both crank signals running same rpm on scanner the hotter it gets the worse it runs at idle,very hard to sta... |
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| 2006 Pontiac G6 2.4L lean code VIN: 1G2ZF55B36 New cat from GM mass air flow came sensor thermostate coolant sensor Gm air filter no leak check with smoke machine drive good code come on on cruse po171 ECM RE FLASH ANY HELP THANKS |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1996 Chevrolet Impala SS 5.7L odometer VIN: 1G1BL52P3T I took the cluster back out and found a burn mark on the circuit board a few inches from the 3 resisters which all had loose solder joints. Soldered in a jumper wire and now the odometer works like new. Thanks for the help. Looks like the customers replacement... |
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| 2006 Chevrolet Silverado 2500 HD LT 8.1L hard start. stumble VIN: 1GCHK23GX6 thanks for the replies. seems as though the fuel pump unit was faulty. thanks to Dan for the great tip on isolating the problem. just goes to show that even if you use quality parts you still get failures from time to time. nothing is guaranteed in this busine... |
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| 2007 Chevrolet Tahoe LTZ 5.3L master cylinder VIN: 1GNFK130X7 So, today a new master cylinder showed up from the Chevrolet dealer, before I did anything with the new master I removed the old one and tried bench bleeding it with 2 hoses going from the outlets to the fluid in the reservoir. After several full strokes with ... |
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| 2003 GMC Envoy XL SLE 4.2L Rear A/C VIN: 1GKET16S33 I want to thank everyone for their prompt replies to this problem. It was in fact the rear a/c actuator for the mode. A new one fixed it right up and now the little kids can be cool on their way to vacation. |
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| 2006 GMC Savana 3500 6.0L No power, runs poor VIN: 1GJHG39U36 left side downpipe had been previously replaced, new pipe only had one cat instead of 2, the single cat overheated and melted down causing left side to plug up, found it after we cut cat off and looked inside and found now material had all fallen to bottom ope... Trouble codes: P0300 (Cyls 1357 in history only). |
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