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Prev Professional Automotive Repair Technical Discussions for December 23, 2014
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Open Help Requests for GM
Help Request Answers
2008 Buick LaCrosse CXL 3.8L water pump VIN: 2G4WD58258
I have this Buick in here that is making a knocking noise in the front of the engine. it is not consistent may last 5 to 10 seconds and go away for 30 and come back. I can take the belt off and the noise goes away. we replaced the water pump it had a tiny bit ...
1999 Cadillac Seville STS 4.6L mode door actuator VIN: 1G6KY5497X
I'll spare you the details that led me to this point. Dash is out. Replacing mode door actuator. New unit from gm has slightly different pattern in wheel grooves that move the various door levers. That doesn't disturb me nearly as much as the fact that I can't...
1997 Chevrolet K2500 Suburban LS 7.4L Misfire VIN: 3GNGK26J2V
I have a misfire on #3 cylinder. This one came to me after many things tried elsewhere. The above listed has been changed, an rechecked while here. Converters have just been replaced for restriction. I have checked the previous repairs and adjustments, and fou... Trouble codes: P0171
2005 Chevrolet Tahoe LS 5.3L rotors VIN: 1GNEK13TX5
hi everyone I have one that I am not familiar with I work on manly imports but this a good customers second ride...this truck came in because the right rear caliper had locked up and caught on fire,once truck was towed here I verified that it had caught on fir...
2010 Chevrolet Equinox LT 3.0L MIL Lamp on VIN: 2CNFLNEY4A
This code will set most of the time when cold, could get it to come back a couple times when engine warmed up. I have tried crankshaft relearn with no change, cam sensor on the firewall side exhaust no change, have also switched the vvt actuators with intake s... Trouble codes: P0017
2009 GMC Yukon Denali 6.2L park in center VIN: 1GKFK03249
at times windshield wipers will park in the center of the windshield any hints thanks MERRY CHRISTMAS
1997 Pontiac Grand Am SE 3.1L Coolant leak VIN: 1G2NE52M2V
We have the Grand Am cone in with coolant leaking out of the A/C drain, my question is what would alow coolant to leak ot of the A/C drain Thanks to all

Fixes & Summaries for GM
Fix/Summary Answers
1999 Chevrolet Silverado 2500 6.0L No Start VIN: 1GCGK29U1X
2002 Chevrolet Silverado 3500 6.0L Fuel guage VIN: 1GBJK34U82
Everything checks out ok. New updated float arm was put in when rear fuel module assembly was put in. Customer admitted that it only does it on extreme angles. It seems that it is being operated outside the designed conditions. Customer liked the idea of k...
2007 Chevrolet Impala LT 3.9L Blowing lines/seals VIN: 2G1WC58R17
Further interrogation of the customer revealed this last failure happened right out of the warm garage and only a couple miles of driving. Used shop air to check return side to reservoir, good flow. Purged the system fluid, replaced the p/s pump, return line...
2001 GMC Sierra 2500 HD SL 6.6L downshift VIN: 1GTHK23161
Ok the actuall fix for this vehicle was simple but not sure what caused it to start. We relearned all the trans adapts and found a tsb for a reflash for some trans related issues so I did the reflash also. drove the vehicle for several days and all is well.
2007 GMC Sierra 1500 Classic SL 4.3L Stall, MIL Lamp on VIN: 1GTEC19X87
Thanks to all that applied. Mark and Doug were pretty close to what had happened. The tech2 would communicate after selecting "classic." That fixed the no communication errors. I still had an intermittent stall, theft deterrent and battery light. I double chec...
2006 Saturn Ion-3 2.4L MIL Lamp on VIN: 1G8AW15B86
Hello everyone and thanks for the help on this. The fix for this one was a new PCM. The dealer reflashed it and off to the races we go. Thanks, ROn Trouble codes: P2127 (accel pedal position sensor circuit 2 too low).
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