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Prev Professional Automotive Repair Technical Discussions for February 24, 2011
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Open Help Requests for GM
Help Request Answers
2003 Buick Rendezvous CXL 3.4L TCC lockup in 2nd VIN: 3G5DA03E13
This car came in on the hook - not moving, so not much pre-testing could be done. After overhaul this car has TCC lockup right on top of second gear and stays locked up until it downshifts out of 2nd when stopping. The TCC release pressure says NO as soon as i...
1994 Cadillac Seville SLS 4.6L noise VIN: 1G6KS52Y3R
This Cadillac had the battery run dead during a cold spell of negative 18 or so actual. Would not start or jump start. They brought the car in for a no start. I relerned the security and the car started and ran rough until it cleared it's throat. Now when you ...
1998 Chevrolet C1500 Silverado 5.7L pump runs too long VIN: 1GTEC19R8W
customer complaint is fuel pump runs after key is turned off. i know this is normal for these but my question is how long should it run? this one goes about 5 or 6 seconds then shuts off.
1998 Chevrolet Tracker 1.6L Misfire VIN: 3CNBJ1868W
car came in running bad. found #4spark wire oil soak. changed valve cover gasket and plugs and wires. drove for two days. no check eng. lite or misfire. gave to customer did't even make very far po300. i got it back and kept driving and it set po304. wires are... Trouble codes: P0304
2002 Chevrolet Venture 3.4L Starting VIN: 1GNDX03E92
This vehicle came in on the hook. Tech replaced starter and battery before asking for help. When you turn the key to start no response except that all lights in IP and headlamps go off. Ignition switch test good. Power and grounds have tested good. I am a litt...
2007 GMC Canyon SL 2.9L timing VIN: 1GTDT19937
This vehicle came to me from another tech that replaced valve seats. complete valve job with all new components. what I have is a code p0017 cam crank correlation and cyl #1 miss fires. I know this engine was set up without tool for holding cams. I have tool o...
2007 GMC W4500 Forward W4S042 5.2L light on VIN: J8DC4B1697
hi everyone, we have a diesel w4500 truck that came in for routine maintenance. The driver told us the water seperator light is on. we drained the petcock at the fuel filter and did get out some water. the light is still on though. is there another problem, or...
2005 Pontiac Grand Prix 3.8L Traction Control VIN: 2G2W952285
First, thank you for your time. Car came in with traction control light on and no other lights on. The traction light comes on just after you start to move. We scanned it and found C0240 PCM Traction control not allowed. We can communicate w/ebcm. We checked p...

Fixes & Summaries for GM
Fix/Summary Answers
2000 Chevrolet Silverado 2500 6.0L transmission VIN: 1GCGK24U0Y
Well the problem was there was a pre 99 center support in a post 00 box. Wasted alot of time on this one, never trust your parts guy. the truck is back on the road and going good, When pulling the center support out be sure to remove the cooler fitting on the ...
2001 Chevrolet S10 2.2L No Start VIN: 1GCC514571
first off thanks to everyone.i spent days on this vehicle at no avail.the problem is mechanical i just cant prove it.this vehicle was bought thru drive time and their warranty will not cover tear down.with that being said my customer will not pay either.so unt... Trouble codes: P0172, P0631.
1998 GMC Safari SLX 4.3L LF drive axle pops out VIN: 1GKEL19W7W
I need to close this case. I do not have as confirmed fix yet, but I am almost positive the fix will be a transfer case. Pete and Bill sugested that the transfer case may be binding. I removed the front driveshaft and test drove about 15 miles without the axle...
2002 GMC Sierra 2500 HD 6.6L Mechanical VIN: 1GTHK23152
First off thank you for all of your very quick replies. After close inspection decided to replace front pump which included new pump,bushing,and seal. Also replaced all converter housing bolt orings and installed copper washers on 2 lower bolts. Torque convete...
2006 GMC Sierra 3500 WT 6.6L MIL Lamp on VIN: 1GDHK39D06
Thanks to those who responded. We have not had any more severely cold weather since I submitted this help request so I have not been able to deteremin anything. I will update if anything changes. Trouble codes: P0087 (Fuel pressure too low).
2004 Oldsmobile Alero GL 2.2L Ign key VIN: 1G3NL12FX4
Well thanks to all that replied... It ended up being 2 P.O.S lock cyl's from ---. We ordered 1 from another vender an the car is fixed. Thanks again Alex J.
1998 Pontiac Sunfire SE 2.2L Security System VIN: 1G2JB5246W
thanks for all who replied, the problem was a combination of problems, 1st we found that ignition lock cylinder was defectiveand we also found that the used instrument cluster installed was also bad...combination of both problems casued 2 weeks of headaches......
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