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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for April 4, 2011
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Open Help Requests for GM
Help Request Answers
1998 Cadillac DeVille 4.6L transmisison VIN: 1G6KD54Y8W
Hello all, I have a real interesting condition. Car came in running very very poorly due to bad head gaskets. Car was driven some time with bad head gaskets and it was the radiator that let go and forced the car to be repaired. Powertrain was dropped from the...
2003 Chevrolet Cavalier 2.2L No Start VIN: 1G1JC52F83
Hi iATN, I replaced a BCM that fixed the intial complaint, the cluster was not reading the correct information. I programmed this BCM via Tech 2. Everything went smooth and functioned correctly. Next day the car will intermittently not start and ERROR will sh... Trouble codes: U1000
2004 Chevrolet Cavalier 2.2L MIL Lamp on VIN: 1G1JC12F24
Hello there I have this cavalier here and it keeps throwing a large evap leak code. I have replaced the fuel pump assembly due to the evap line leaking at pump. I have replaced the evap purge solenoid. Also the small wiring harness is good to the solenoid. I h... Trouble codes: P0455
2006 Chevrolet Cobalt LS 2.2L MIL Lamp on VIN: 1G1AL15FX6
This car has had a air pump, pump check valve/shut valve replaced. All power and grounds are good. all tests pass in the shop but will set code and turn on s.e.s. light within 100 miles. All hoses and vacuum for the system seem good. No other problems are pres... Trouble codes: P0411
2006 Chevrolet Silverado 1500 LS 4.8L headlights VIN: 2GCEC19V06
Customer says headlights go off while driving. I checked fuses,grounds,and swapped relays. I found code B2580 in computer memory. Am looking at a bad headlight switch but couldn't reconcile that with the trouble code. Anyone familiar with this code? thanks
2007 GMC Canyon SL 2.9L Stall VIN: 1GTDT19917
Gm techs i could really use your help on this one. I actually have two of these identicle trucks doing exactly the same thing. Once warmed up this truck will stall when coming to a stop or if it sits and idles. It does not matter if it is in park,drive ,nuetra...
2001 Oldsmobile Alero GL 3.4L day time run lights VIN: 1G3NL52E61
Hello all, I have this olds that when you out it in gear the drl will come on, flicker, and go off. When this happens the check eng light will come on with a code B2600. Looked up code but cannot find a test. If you use scanner drl will stay on with no problem...
2005 Pontiac Bonneville GXP 4.6L Abs/Trac VIN: 1G2HZ54Y85
Vehicle came in with intermittent Trac light off - ABS disabled. Starts with Trac low light then system disables. Set code for LR speed variation. I caught it once on the scanner and the LR sensor read 60mph with others at 15 on rest for about 2 seconds. Other...
2007 Saturn Sky 2.4L waterpump VIN: 1G8MB35B87
i replaced the water pump for a leak and after the repair i have a high pitch whinning noise i did use the tool to hold the gear in place the first waterpump was a bosch then i took that off and we put on a delco and have the same result the noise sounds like ...

Fixes & Summaries for GM
Fix/Summary Answers
1992 Chevrolet C2500 Silverado 5.7L drive VIN: 1GCFC24K1N
Thank you to everyone that replied. My intent was to learn something I did not previously know. Of course as we all knew a replacement transmission would cure the no forward motion problem. Upon removal of the transmission we found the front pump and the torqu...
1998 Chevrolet Blazer LS 4.3L turn signals VIN: IGNDT13W22
At last, I got this Blazer in this morning. Put in a new multi-funtion switch. Everything working great. Thanks for all the help - you guys and gals are wonderful. Danny
2001 Chevrolet Venture LT 3.4L Fuel gauge erratitic VIN: 1GNDX03E61
Finally got this thing to fail in the shop found problem was as most said fuel sender. Replaced with AC delco and all is well Thanks for the help Mike
2004 Chevrolet Impala 3.8L noise VIN: 2G1WF55K05
Thanks to everyone who replied. The transmission 2-3 shift solenoid was the problem. The noise occured exactly at 3-2 shift slowing down between 15 and 20 mph. The scanner confirmed the diagnose. A new shift solenoid, and the problem is gone. Thanks again to ...
2007 Chevrolet Cobalt LT 2.2L Power Door Locks VIN: 1G1AL55F37
Time to close this one. It isn't fixed yet. From the information i have received, sounds like possibly a bcm problem. Will post fix once customer brings car back in. Thanks
2007 Chevrolet Silverado 2500 HD LT 6.0L Stall VIN: 1GCHK23K87
i disconnected the batt. hooked up ohm meter to the d.l.c. pin. 6 and 14 got 6-9 omhs now according to tsb this truc has a lot of problems in different places with wire chafer. wiggle the trans and a.b.s. module nothing the engine harrnes on the drive side by ... Trouble codes: P0700 (Trans requset mil), U0073 (T.c.m. Bus a off), U0100 (Lost comm. With ecm/ pcm a), U0102 (transfer case), U0140 (b.c.m.).
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