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Prev Professional Automotive Repair Technical Discussions for June 26, 2010
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
2001 Buick Century Limited 3.1L Hesitation, Surge, MIL Lamp on VIN: 2G4WY55J31
Vehicle came in with check engine lamp on and the complaint of hesitation and lack of power only when engine is cold. As soon as the engine reaches opperating temp. the symptoms vanish and the car runs great and has lots of power. Tried replacing mass air flow... Trouble codes: P0420 (three-way catalytic converter), P1189 (Oil pressure switch), P1811 (Max Shift Adapt)
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1994 Chevrolet Lumina APV 3.8L Mechanical VIN: 1GNDU06L4R
hi all I am new here and want to know if anyone can help me out.custermer brought van in late on friday,close to closing.came in on a hook for no start.trying to get ahead on this for monday.van cranks but will not start at times,when it wont start the cooling...
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2001 Chevrolet Malibu 3.1L Theft system VIN: 1G1ND52J91
Car returned on hook this week for crank but no start with theft light on. This has happened twice before and the vehicle always starts fine when it gets to shop. Has B2960 in the BCM. We have OTC genysis scantool running system 4.0. It has a data screen for p...
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2006 Chevrolet Silverado 3500 LT 6.6L MIL Lamp on, Goes into limp in VIN: 1GCJK33D96
The customer was driving and experienced a loss of power. He stopped and changed the fuel filter and continued driving for maybe 50 miles when he experienced the same problem. Thinking he may have had bad fuel he replaced the filter again (WITH NAPA GOLD FILTE... Trouble codes: P0087 (Fuel Rail Pressure Low)
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2002 Saturn L300 3.0L ECM Grounds VIN: 1G8JW54R72
Car came in with SES and wrench lights on and no A/C operation scan data for all four sensors points to a ground issue and thats what i have There is no ground coming from ECM to these sensors back probed connector j2 pin 23 and ground disappears when key is c... Trouble codes: P1283 (APP Sensor 2 Circuit High Voltage), P0453 (EVAP Fuel Tank Pressure Sensor Circuit High Voltage), P0463 (Fuel Level Ssensor Circiut High Voltage), P0533 (A/c Refrigerant Sensor Circiut High Voltage)
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Fixes & Summaries for GM
Fix/Summary Answers
1997 Cadillac DeVille 4.6L Cam Timing VIN: 1G6KD54Y1V
THANKS FOR THE HELP. I HAD EVERYTHING TIMED PROPERLY BUT THE LIFTERS WERE GETTING STUCK ON THE RIGHT BANK. TOOK OUT CAMS, BLED DOWN LIFTERS & LUBED EVERYTHING. THEN TURNED WITHOUT A PROBLEM. CAMS WERE NEVER REMOVED WHEN HEADS ORIGINALY CAME OFF. MUST HAVE BEEN...
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2004 GMC Sierra 2500 HD 6.0L Temp VIN: 1GCHK29U54
ok here is what we found both coolers were stopped up to some point rad and external. bypassed ext. cooler first temp went down 5 deg on highway and about 5 in town empty installed new ext and at highway speed temp came down to 200 and in town was 229 installe...
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1973 Oldsmobile Cutlass Supreme 5.7L ac VIN: 3J57K3R167
Hey and thanks for all the tips. I found the actual charge capacity was 4lbs and I had charged it with 2 lbs. I also put the vehicle on a 45 minute vacum and now I have a [...] temp diffrence in the vents so all is well and thanks for all of your time and h...
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1998 Pontiac Sunfire GT 2.4L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on VIN: 1G2JD12T9W
found #3 injector leaking like a sieve. lesson learned: do not rely on genisys to show which cylinder is missing on these engines! Thanks to all those who replied Trouble codes: P0300 (Random misfire).
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