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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for November 28, 2012
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Open Help Requests for GM
Help Request Answers
1995 Cadillac Fleetwood 5.7L No Start, Surge, Cuts out, Stall VIN: 1G6DW52P6S
This cadillac is a limo for a local funeral home so it does alot of sitting in heated storage and a lot of idling. It has the 5.7l LT1 engine with the optispark ignition. The problem started in Nov. 2009 right after the funeral home purchased the limo(69,740 m... Trouble codes: 16 (low resolution pulse failure)
1998 Chevrolet Monte Carlo LS 3.1L front strut mount bearing VIN: 2G1WW12M5W
1998 monte carlo has a binding front strut mount bearing.the assembly is up inside the tower. i have replced 100's of struts but never one like this.any help on how to replace the mount and possible spring and if any special tools are needed would be appreciat...
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)
2006 Chevrolet Impala LT 3.5L MIL Lamp on VIN: 2G1WT58K76
Hi fellow techs. I have this 06 impala that will set a p1174 cylinder imbalance code and will not pass emissions test. my info is very limited on the p1174. mitchell is vague on it. i have smoke tested intake with no leaks found. fuel pressure is 58psi running... Trouble codes: P1174
1995 Pontiac Firebird Formula 5.7L No Start VIN: 2G2FV22P9S
I think I know the answer to this but I'll give it a shot. Car came in on the hook,customer stated that it just died. Had injector pulse but no spark. Scanner showed no RPM. I know these Optispark distributors have no CKP sensor only a wheel and two sensors to...
2007 Pontiac G6 3.5L brake lights VIN: 1G2ZG58NX7
Got 2 strange critters on the same day that I have a feeling a few of you GoodWrech guys have been there. Got an '07 and '08 G6 that are setting code C0277 BPP sensor signal short to ground. They called me in to calibrate the BPP position sensor with my Tech 2...
2001 Saturn L200 2.2L BCM Security VIN: 1G8JT52F51
In need of some Passlock 2 help here. This one was brought in from a car dealer. It was an auction car. Odometer shows 67k Gauges were not working and none of the lights on the dash would work unless I kept turning the key on and off while smacking the BCM. Kn...

Fixes & Summaries for GM
Fix/Summary Answers
2003 Buick LeSabre Limited 3.8L Drl VIN: 1G4HR54K63
once I got a strong light on sun sensor everything worked fine. as the gremlins said "bright light bright light!!!" lol
1996 Chevrolet Impala SS 5.7L Misfire VIN: 1G1BL52P9T
Thanks for all the help. The compression check showed rt side to be down.Adding oil didn't bring up. So I done deacarbing,alot. That brought compression up and caused missfire on that side to go down.But would still code for miss. Then I smoke it with engine h... Trouble codes: P1416 (Air injection bank 2), P0300 (Miss fire).
2008 Chevrolet Silverado 3500 HD WT 6.6L Excessive Emissions VIN: 1GCJK33688
vehicle had aftermarket air filter in it,replaced with factory filter and returned to customer, have not heard back from customer yet so not sure if its fixed yet or not.thanks everyone for the balance rate info
2001 GMC Sierra 2500 HD SL 8.1L trans VIN: 1GTHK23G41
this was a tough one for sure.lots of good in fo and suggestions.special thanks to timothy and steve.they got my head in the right direction on trim solenoid values.i was reading the .09 as .9.totally wrong.after trying new electrics we had another tcm install...
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