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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for August 12, 2014
International Automotive Technicians' Network (iATN) - Members Only
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
1999 Buick Park Avenue 3.8L compressor VIN: 1G4CW52K8X
hello techs. i just put an ac compressor and acumulator orifice tube in this car the old compresor was leaking,but still working.now with one pound of fre-on in the compressor,it wont come on and the security light is on ,and the traction light,air bag light ,...
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2002 Buick Rendezvous CX 3.4L temp guage VIN: 3G5DA03E22
Thank in advance for you help. When this car idles without the ac on the temperature guage will go up to 2/3. Customer said that the guage never went above 1/2 before. I have block tested this engine several time because I know they have head gasket problems. ...
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2005 Cadillac SRX 4.6L oil pressure VIN: 1GYEE63A05
Hello everyone, need some help. I purchased this Cadillac when we were slow knowing we were needing to repair a dropped valve seat and that's all the history I have on the vehicle. Repaired cylinder head and installed all new timing chains and guides. Vehicle ...
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2007 Cadillac Escalade 6.2L No Start, Stall VIN: 1GYFK63807
no codes all sensors seemed O K durring problem. Towed back to shop and vehicle started of course. We did notice a max of 6 psi oil pressure hot at crank speed and very weak noid light. after cool down crank speed oil 47 psi at crank speed. Possible crank angl...
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1999 Chevrolet Silverado 1500 4.8L Mechanical VIN: 2GCEK19V4X
Got another GM K series truck that needs to have all the brake lines replaced. I normally fabricate the lines with Surrauto brake line and fittings. I will spend the better part of a day completing the repair. Anyone used the line kits that are now available? ...
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2006 Chevrolet Cobalt SS 2.4L Ignition VIN: 1G1AM18B56
Battling with this 2006 Cobalt SS. Customer came in a few months back with complaint of intermittent no-crank. After starting it numerous times, we did get the event to occur once. When the event occurred, there was no power at the purple starter trigger wire ...
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2007 Chevrolet Silverado 1500 LTZ 6.0L oil pressure VIN: 2GCFK13Y17
low oil pressure will not go over 44psi it will drop to 38psi at 5500rpm
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2008 Chevrolet Suburban 2500 LT 6.0L MIL Lamp on, limp mode VIN: 3GNGK26K98
Thanks in advance for any help with this. I'm this posting for my Technician and can supply additional information if requested. This vehicle is one of our News trucks that we service and there is no prior history regarding this problem. This vehicle was towed... Trouble codes: P0700 (Transmission control Module), U0121 (lost communication with abs system), P0575 (cruse control switch signal circuit), U0102 (lost communication with Transfer case control module), U0100 (lost communication with ECM/PCM), U0140 (Lost communication with Body Control System Erratic)
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2004 GMC Envoy SLE 4.2L MIL Lamp on VIN: 1GKDT13S74
thanks for any help - this envoy came in with po171 lean condition - & air pump codes - replace siezed air pump & divertor valve on side of block,replaced spark plugs due to milage . smoke tested intake system hot & cold - found no leaks - disconnected brake b... Trouble codes: P0171
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Fixes & Summaries for GM
Fix/Summary Answers
2001 Cadillac DeVille 4.6L No Start VIN: 1G6KD54YX1
Thanks a million to all that replied. After reading your posts I started from scratch and what I found was a aftermarket alarm system. For some reason I couldn't remember a GM car making 10 horn beeps so back at the battery I found a large amount of wiring not... Trouble codes: P0300, P0335, P0340, P0385, P0410.
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1998 Chevrolet K3500 Cheyenne 6.5L Forward gear VIN: 1GCHK34FXW
Thank you for the insight everyone. We are going to order a remanufactured transmission with a warranty and see how that goes.
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2003 Chevrolet Silverado 1500 4.3L abs VIN: 1GCEK14XX3
A LOT OF YOU WERE RIGHT. I REMOVED THE CHINESE FRONT HUB ASSY.AND REPLACED THEM WITH PREMIUM US BILT BEARINGS AND REPAIRED THE ABS PROBLEM. I WON'T BUY CHINESE BEARINGS AGAIN AND WILL CHECK ALL OTHER ITEM. THANK YOU ALL. CHARLES
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2013 GMC Terrain SLT 2.4L 5-6 shift VIN: 2GKALMEK90
The serious replies I recieved suggested taking the vehicle out with a scan tool to see what is going on. Customer raised a big stink with dealer since they failed to fix it on multiple visits so they bought it back. I still haven't found out where the shift...
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2004 Pontiac Grand Am GT 3.4L valve train VIN: 1G2NW12E14
All replies missed the mark. It is the camshaft and lifters. Specifically, the number 2 intake lobe is going flat. It was very badly pitted causing float off idle. The fix will be to replace the cam and lifters. I am waiting for customer approval. Thanks for a...
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