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Prev Professional Automotive Repair Technical Discussions for November 10, 2011
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Open Help Requests for GM
Help Request Answers
2004 Buick Rendezvous CX 3.4L rf wheel VIN: 3G5DA03E84
When driving this car and you just add a little pressure to the brake pedal you can hear a slight thumping noise in rf wheel, all of this happens at 15 mph and lower, The wheel have been switched and the rotor has no extra run out, nothing is felt in the pedal...
1997 Chevrolet Cavalier Z24 2.4L turn signal brake lights VIN: 3G1JF12T1V
This vehicle has no brake lights or turn signals. The center mount brake light is inop as well. I replaced the Multi Function switch and it still doesn't work. After checking all the fuses i noticed that the brake/hazard fuse has no power but all the other fus...
2002 Chevrolet Suburban 1500 LT 5.3L Temperature control VIN: 1GNFK16ZX2
This Suburban has automatic temperature control. It does not have dual zone control. When full heat is selected,it gets very hot. Any movement of the temperature control and it goes to full cold. No temperature in between. The blend door goes full swing, as we...
2006 Chevrolet Silverado 2500 HD LT 6.6L Cuts out, MIL Lamp on, loss of power VIN: 1GCHK23D26
This Truck has Been sevral times in for reduced power and MIL with P0087. Problem happens only when towing heavy Loads and going over a Hill. We have not been able to duplicate concern but has happend to customer. Fuel pump pressure ok when commanded to 180MPA... Trouble codes: P0087 (low fuel rail pressure)
2007 Chevrolet Silverado 1500 LTZ 5.3L Excessive Idle Speed VIN: 2GCEK19JX7
This thing must have a ghost. Vehicle came in, for SES light on, DTC present P0121, After checking system, found Air Filter overoiled and dirty, Throttle plate very sticky and carboned up. Cleaned both. Reset fuel trims, Now here is where it went crazy, my Tec...
1998 GMC Jimmy Envoy 4.3L Temp air door motor VIN: 1GKDT13W1W
Hey guys I really need your help on this one. We have 2 GMC Jimmy's that have the same problem. The tempature blend door fluctuates from hot to cold. Had code bo408 and bo416. Perform diagnostic tests. Then replaced control module per test results. Did not fix...
2000 GMC Sierra 2500 SL 6.0L Steering VIN: 1GTGK29U8Y
Have a 2000 2500 sierra with a 6.0L. Vehicle originally came in for a power steering leak. Replaced pressure hoses from pump to hydro boost and from hydro boost to gear. Leak fixed. Steering and brakes functioning normally. Few days later it came back for no s...

Fixes & Summaries for GM
Fix/Summary Answers
1994 Chevrolet K2500 Silverado 6.5L Starter VIN: 1GCGK29F9R
Well the customer decided to take the truck back to the shop that broke it, hoping to get a free fix. When I find out what fixed it I will post it. I want to thank all of you for the replies I got. I do think the flywheel is on backwards.
2002 Chevrolet Avalanche 1500 5.3L Poor Idle Quality, Misfire, MIL Lamp on VIN: 3GNEC13T22
Thanks for all the replies. I had no leak down on the cylinder pressure test so after scratching my head and reading the worn cam lobe idea we removed the valve cover. Ahha a broken exhaust valve spring. One spring on #3 was collapsed at the top. Replaced ... Trouble codes: P0303, P0300, P0301.
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