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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for November 22, 2013
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Open Help Requests for GM
Help Request Answers
2006 Cadillac DTS 4.6L Oil Pan VIN: 1G6KD57Y66
replaced engine oil pan gasket and did not know that this car has something called engine oil manifold. put it back together and the engine started leaking oil between the block and the manifold. was wondering if anybody out there had done one and if you have ...
2002 Chevrolet Impala 3.8L door locks VIN: 2G1WF55K32
This car has come to our shop and the customer complaint is when he gets out of car ( with key in hand) and presses power lock switch the locks will lock and then the drivers door unlocks. I have programmed the locks several times and had no success with this ...
2004 Chevrolet Suburban 1500 LS 5.3L Sensor relearn VIN: 3GNFK16Z24
Vehicle came in with tpms light on, found LF sensor dead. Replaced sensor and now can read the data with mac tools tpms tool, but cannot get vehicle to go into learn mode. Tried the light switch and pressure methods of activating relearn mode and no horn chirp...
2005 Chevrolet Trailblazer LS 4.2L Rke VIN: 1GNDS13SX5
This one is for the GM gurus. Customer states that after some body work that her AFTERMARKET RKE system is not working. Our inspection reveals that the aftermarket system has failed. My question is, can we pull this aftermarket system out and flash the body mo...
1997 Oldsmobile Achieva SL 2.4L abs VIN: 1G3NL52T2V
This car came to me from another shop that could not fix abs light. I found the module was dead no com. Replaced module now it comunicates and sets lf wheel speed codes found bad wires replaced harness. Now sets lf variation codes replaced lf speed sensor took...

Fixes & Summaries for GM
Fix/Summary Answers
1971 Chevrolet C20 Pickup 4.1L Hesitation, Cuts out VIN: CS241B6412
It was the carburetor. And yes, I did get it fixed! The main problem was that I had put the metering rod spring on the wrong side for the lifter. (thanks Paul) This caused the metering rod to open MUCH to late. The second problem was a clogged calibration...
2001 Chevrolet Silverado 2500 HD 6.6L engine temp VIN: 1GCHK23141
Thanx to all that responded, this was a tough one to understand! After replacing the t-stats w/ OE, that was recommended by several of you, although I don't believe the operating temp is what it used to be, it is running 10-15 deg warmer (183) w/ no load cruis...
2003 Chevrolet Silverado 2500 6.0L Hesitation, Surge, Cuts out, Misfire, MIL Lamp on VIN: 1GCHK23U53
Vehicle is still at the the shop. Tried the two upper oxygen sensors and mass air flow from other truck, still had same problem. Ground strap behind engine was good but still made own ground wire going straigt to battery same problem. Tried 2 pairs of injec... Trouble codes: P0300 (Random multiple misfire).
2007 Chevrolet Avalanche LTZ 5.3L lf strut VIN: 3GNFK12307
Thanks for all the help, I ran a jumper wire from the right side connector and left side fault cleared. this narrowed the fault to the new strut i had installed. Replace the strut under parts warranty all all is well.
2007 GMC Envoy SLE 4.2L Engine VIN: 1GKDT13S77
Thank You for all the applies. After removing the lifters, which is an idiotic amount of work when you don't have the tooling to compress the springs and have to remove the cams and chain, 1 exhaust valve lash adjuster was collapsed. It was ~0.200" shorter t...
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