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Prev Professional Automotive Repair Technical Discussions for August 6, 2014
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
1999 Buick Park Avenue 3.8L Turn Signal/Hazard VIN: 1G4CW52K8X
This vehicle came into my shop with some strange turn signal function. The customer told me that her brother had removed the bulbs from the left side because the LR bulb had stayed on causing her battery to go dead. I replaced all the bulbs with 3057's (most h...
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2003 Buick LeSabre Custom 3.8L Codes -no lamp VIN: 1G4HP52K73
MIL LAMP WORKS BUT DOES NOT COME ON WITH CODES CHECKED MILLI- AMP DRAW ON CIRCUIT 80 ma 12v when light out. TRIED NEW ECM SAME FAULTS. ANY HELP APPRECIATED
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2002 Chevrolet Impala 3.4L No Start VIN: 2G1WF52E52
good evening this vehicle was towed here and left customer said no start checked fuel pressure 55 ibs. checked for spark no spark,connected modis to vehicle,no codes no history codes no freeze frame codes,check the data display have rpms on 3x crank sensor and...
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2002 Chevrolet S10 4.3L Low Beams VIN: 1GCCS19W02
Hello out there in car land and help!!! I have this 2002 S10 pickup in that is intermittently loosing its low beams while the customer drives. He will be driving along and out both of the low beams go but the high beams work. The low beams will start working ...
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2008 Chevrolet Avalanche LS 5.3L No Start VIN: 3GNFK12318
Hello, this Avalanche won't start sometimes. When that happens there is no communication with the FPCM. Later it starts. It never dies, just cranks but no start at times. No amount of wiggling wires seems to have an effect. We can't decide if it "got better" a... Trouble codes: U0109 (ecm no comm with fuel pump module)
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2011 Chevrolet Silverado 1500 LT 5.3L Passenger Presence VIN: 1GCRKSE31B
Hello techs. This is a used truck off my lot. The "Service Air Bag" light came on. Pulled code B0081-5a Passenger Presence System 1 Calibration not learned. My shop was backed up 2 weeks so I sent it out to the GM store for diagnosis. I was told that it needed...
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1993 GMC C1500 Sierra 4.3L Poor Idle Quality VIN: 1GTEC14Z4P
hey guys! Got a goofy one! occurs only on a hot soak, about 10 min after a test drive. low, rough idle for about 30 seconds then its like u flip a switch and it is perfectly normal. Runs great after that until next hot soak. Replaced fuel pressure regulator fo...
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2004 GMC Sierra 2500 SLE 6.0L Engine Misfire VIN: 1GTGC24U54
Vehicle came in with P0300, Random misfire. We changed to spark plugs and wires due to high millage and the vehicle was due for a tune up. When the misfire was still present we continued testing. When we induced propane into the valve cover at the pcv port (bl...
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2004 GMC Sierra 1500 SLE 5.3L Mechanical VIN: 2GTEK19T64
Car does not start has good fuel but no spark cranks no problem ... Have power to the main coil harness..does have a crank signal on scanner.
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2001 Saturn L300 3.0L Misfire VIN: 1G8JW52R61
Car came in with intermittent random misfire. Computer was reprogrammed in past for random misfires by dealer according to tsb. Replaced plugs, coils, and valve cover gaskets. Vacuum at idle is 20in.. Vacuum in drive with ac on is 15in.. Checked for vacuum lea... Trouble codes: P0300, P0301, P0302, P0303, P0305, P0306
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Fixes & Summaries for GM
Fix/Summary Answers
1997 Buick Park Avenue 3.8L Power Windows And Door Locks VIN: 1G4CW52K0V
replaced drivers door module. everything works normal now. thanks to all that responded.
15
2000 Chevrolet Express 1500 5.7L Hesitation, MIL Lamp on VIN: 1GBFG15R8Y
Okay all is good. Thanks for the replies. Installed new MAF and took it out first thing this morning and ran great !!! Trouble codes: P0171 (Lean exhaust bank1), P0174 (Lean exhaust bank 2).
22
2004 Chevrolet Tahoe LS 5.3L Battery VIN: 1GNEK13Z84
Customer was instructed to leave radio fuse out. No longer any problems starting. Whatever was coming on and going off probably wasn't an issue. New radio will be installed to remedy the parasitic draw. Thanks for all the help.
19
2007 Hummer H3 3.7L Unknown VIN: 5GTDN13E37
unpluged wiring plug at encoder moter cleaned connector found alittle corrosion on the black wire.alsob put star washers under all 3 bolts on the encoder moter for a better ground.code message went away.thanks for all the help.
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