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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for November 29, 2012
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Open Help Requests for GM
Help Request Answers
2000 Buick Park Avenue 3.8L No Start, Stall VIN: 1G4CW54K0Y
veh was brought in on a chain wld start and die wld come up to 1200 rpms for a sec or so and die once i get started it will run for about 6 miles and quit found intake gaskets leaking replaced lower intake gaskets and upper plenum and pcv valve changed oil roa... Trouble codes: P0101
1993 Cadillac DeVille 4.9L distributor gear VIN: 1G6CD53B8P
Hello Fellow IATN Techs, This lovely Cadillac has returned to me once again! Two years ago almost to this day this Caddy came to me with a bad fuel regulator and stalling at idle in gear issue. I replaced the regulator, oil and filter and checked codes, code 4...
1999 Chevrolet Blazer 4.3L 2-3 shift VIN: 1GNDT13WXX
Came in for multiple transmission codes.Problem started after engine replacemnt at another shop. P0785,p0758,p0753. Found broken wire at transmission connector - replaced still have same problems...a transmission shop replaced wiring harness and solinoids - re...
2000 Chevrolet Blazer LS 4.3L No Spark VIN: 1GNDT13W0Y
Hello i have a 200o blazer with 4.3 vin w... We cant figure out why this truck will not start if the outside temp drops below 37 degrees but if you wait tell the outside temp goes to 39 to 40 degrees the truck will start with out a problem... We have check all...
2001 Chevrolet Tracker ZR2 2.5L engine VIN: 2CNBJ73411
this vehilcle has haunted my shop far too long and the timing nightmare that the engineer has designed has vague timing referece marks. furthermore tdc is apparently not actually tdc as far as i can decifer. i don't wish to reassemble this monstrousity without...
2001 Chevrolet Tahoe 5.3L Prndl VIN: 1GNEK13T81
Thanks for your time! I replaced the switch on the transmission because the dash indicator was reading wrong. Park and reverse were pretty reliable but if I moved pass R, it would stay on R. If I shift into drive, the indicator may change a couple of minutes l...
2002 Chevrolet Express 1500 5.7L Misfire VIN: 1GBFG15R72
I have been over and over this vehicle. Replaced distributor cap, distributor, checked vacuum from oil dipstick tube with pcv blocked and found no vacuum to rule out intake leak. Misses on random cylinders, if distributor cam sensor is unplugged the tech 2 wil... Trouble codes: P0300 (Misfire)
1996 Geo Metro LSi 1.3L Temp gauge
Hi, I have this Geo that the temp gauge will drop to cold when the car is up to operating temp and sometimes when the car is cold the temp gauge won't come up and when it finally does it just pops right up to half way, sometimes it could be hours the customer ...
2003 GMC Sierra 1500 SLE 5.3L Transfercase VIN: 2GTEK19TX3
This truck has the AUTO 4X4. So the switch on the dash with the indicator lights works just fine. The encoder motor switches into all the ranges. When shifted into AUTO 4X4 it works perfectly. When in 4X4 HI or 4X4 LOW the front prop shaft does not engage. The...
2004 GMC Sierra 2500 SLE 6.0L Gauges VIN: 1GTHC23U34
No scan tool communication/ and the 4 gauges on the instrument panel are not working, fuel, oil, volts,temp. On the scan tool communication issue... pins 4/5 have good grounds, pin 16 has battery voltage...Pin 2 is the only other pin in the connector, and i w...
2006 Hummer H3 3.5L rear main VIN: 5GTDN13L46
we have changed the rear main 3 times , still leaking. we called hummer and they sold us a timing plate cover with seal and said that the rear main seals that we were getting were defective , i put the timing cover plate with seal in and drove it for 5 miles ,...
1992 Pontiac Grand Prix SE 3.1L No Start VIN: 1G2WJ14TXN
Car came in hook , no fire no injector pulse, kept blowing dis fuse, found short in modcule, replaced modcule crank sensor, the fuse, now have spark and injector pulse , fuse no longer blowing, but car will not start. Acts like plug wires crossed back fires th...

Fixes & Summaries for GM
Fix/Summary Answers
2005 Chevrolet Aveo LS 1.6L Poor Idle Quality, Surge, Misfire VIN: KL1TD52675
The customer never returned after bird day for the diagnosis. It is probably in need of a valve job.
2007 Chevrolet HHR LS 2.2L Mechanical VIN: 3GNDA13DX7
It ended up being a small crack in the head around the exhaust port, crazy, never seen one crack like that.
2010 Chevrolet Traverse LT 3.6L multiple door locks, heating, lights, blown fuses, VIN: 1GNLVFEDXA
Thanks to all who replied. The dealerhip replaced two transmission control modules and that seems to have fixed the problem.
2002 GMC Envoy SLE 4.2L Stall VIN: 1GKDT13S02
Sorry for posting so late. thanks for all your replies. I thought the problem was as most of you said. I was trying to prove to customer and back it up. Again thanks to you guys customer finally gave in and returned. I cleaned out the throttle body and all is ... Trouble codes: P0105.
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