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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for April 21, 2014
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Open Help Requests for GM
Help Request Answers
2008 Buick Enclave CXL 3.6L voice audio VIN: 5GAEV23718
OK... We are dealing with a strange symptom with no direction??? Fully functioning Radio, CD player, DVD player, speakers, video screen, rear controls, etc... Problem is when the "movie" finally begins.. there is no voice audio!! Music soundtrack and sound ef...
1999 Cadillac Catera 3.0L No Start VIN: W06VR52R6X
The car came in as a no start. It is not getting injector pulse. CMP and CKP sensors are both operating. The security light is flashing until the key is turned on, then it goes out and stays out. Even though the light is out, I still have tried the key relearn... Trouble codes: P1503 (Wrong key code)
2000 Chevrolet K3500 7.4L po1870 when trans.fluid temp. is about 200 deg. f VIN: 1GCHK33J7Y
This is a nice 1 owner truck with a 4L80E transmission, came in with several transmission fault codes ,and after driving a while it would down shift to 3rd gear , and the increased line pressure would make it shift harsh, replacing the ignition switch took car...
2002 Chevrolet Malibu 3.1L Unknown VIN: 1G1ND52J22
common intermittant crank with 55psi fuel pressure and spark but no start...wait awhile and starts right up perfect...always have good fuel psi and spark when i get crank but no start...is this the passlock failing that prevents the injectors from getting elec...
2010 Chevrolet Silverado 1500 WT 4.8L Unknown VIN: 1GCSKPEAXA
This vehicle came in with a pretty violent shaking in the steering wheel after the car has driven on the freeway continuously for about 15 to 20 miles. After driving at freeway speeds without stopping for over 15 miles the customer will start to feel the steer...
2012 Chevrolet Captiva Sport LT 3.0L fuel system VIN: KL1CD6A6DC
Dear friends I have one Chevrolet Captiva 2.2L AWD, at my workshop. it have fuel low pressure in Rail and cylinder 1 and 3 injector stuck. i have replaced new fuel pump and injectors. but engine does not starts now.Replacing process i have removed battery, EC...
1996 Oldsmobile Cutlass Ciera 3.1L circuit 39 VIN: 1G3AJ55M2T
Car came in with complaint of not shutting down have to pull inj coil fuse to shut down engine. But charge,airbag,seatbelt,ses and seatbelt lights stay illuminated with key off. Sounds easy right? Circuit (ckt) 39 pink 3mm wire from ignition switch to fuse box...
2002 Oldsmobile Alero GL 3.4L Stall VIN: 1G3NL52E92
Thanks for reading, my question is GM Passlock system would make engine stall out at anytime hot or cold? After stall try restart, it 's no crank, ( jump starter direct crank and spark at plug wire) cycle key couple time always start again on its own. As mine ... Trouble codes: P1626 (Anti Theft system)

Fixes & Summaries for GM
Fix/Summary Answers
1998 Chevrolet K2500 Cheyenne 5.7L ABS module VIN: 1GCGK29R2W
Ok so the customer is opting for us not to spend the time on this one. I guess his plan is to pull the abs fuse and drive it like it is. We did end up flushing the system with alcohol as was suggested and replaced any rubber components (again) that seemed bl...
2001 Chevrolet Impala 3.4L ignition VIN: 2G1WF55E21
2003 Chevrolet Silverado 1500 4.3L No Start VIN: 1GCEC14X13
Thanks for all the help. I was going down the wrong path due to my passlock fault, thinking it was shutting off fuel.. but once I started smelling gas after cranking the truck, i realized it couldnt have been shutting down fuel. It was just a cap and rotor t... Trouble codes: P1626.
2007 GMC Envoy SLE 4.2L Compression VIN: 1GKDT13S37
We'll call is a fix in progress it seems a number five cylinder has a very weak or broken valve spring I can push it down with my thumb. This should explain why my compression readings are all over the place. The weak spring must be letting the valve float whe...
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