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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for October 18, 2009
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Open Help Requests for GM
Help Request Answers
1994 Chevrolet C3500 6.5L no gears VIN: 1GND43L56W
This is a relatives tow truck he called me saying it wont shift into any gear.He replaced the sensors and that did nothing.Now it will move but wont shift.Ive yet to look at it. I was hoping some one out there seen this problem before.It just stop shifting and...
1999 Chevrolet K1500 Suburban 5.7L MIL Lamp on VIN: 3GNFK16R5X
Thank you in advance for any help. I have seen this vehicle multiple times for same codes and have yet to figure out the problem. The air pump opperates correctly. When I manually power air pump while vehicle is running, the left o2 sensors have a faster respo... Trouble codes: P1415, P0410
2004 Chevrolet Silverado 2500 HD 6.6L frt hubs VIN: 1GCHK24114
I am asking for some input. This truck came to me with both frt bearing hubs damaged. When i was tearing done the trk i noticed both axle shaft nuts were loose. This is a one owner trk very clean. The axles have never been touched is GM having a problem with t...
1999 GMC Yukon SLT 5.7L daytime running lights VIN: 1GKEK13R7X
we have searched everywhere for this diode indicated in mitchell diagrams. jumped the circuit on the feeding side of the relay and the drl operates. all indicates a bad diode just need to find it. this vehicle has immobilizer and remote alarm. wire everywhere....
2002 Pontiac Bonneville SE 3.8L Radio Display VIN: 1G2HX54K42
I have a 2002 Pontiac radio with the back lighting display that is only partially illuminated. I know that you can replace the bulbs on the older Pontiac radio's. But this is the newer style with the larger display. I pulled the radio and removed the top cover...

Fixes & Summaries for GM
Fix/Summary Answers
1992 Chevrolet C1500 WT 5.0L Poor Idle Quality, Stall, MIL Lamp on
hi, i just wanted everyone to know that i repaired the problem with this truck, someone mentioned the fuel pressure regulator in the throttle body ,i replaced it with one i knew worked well and it worked, thanks to everyone for thier help. Trouble codes: 33 (map sensor high voltage reading).
2006 GMC Envoy SLT 4.2L MIL Lamp on VIN: OGKBT13S46
Here's the deal on the Envoy. Thanks to every one who offered constructive answers. Most of which talked about the mass air flow meter. I had looked at the maf and it appeared clean so I went back and cleaned it anyway. The fuel trims after cleaning changed to... Trouble codes: 171 (lean exhaust).
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