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Prev Professional Automotive Repair Technical Discussions for February 20, 2013
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Open Help Requests for GM
Help Request Answers
2002 Buick Rendezvous CX 3.4L 2-3 shift VIN: 3G5DB03E42
i got a buick rendezvous the transmision slips on the 2-3 shift rpms go to 3600 at 32 mph then shifts to third.on the scanner in first gear the 1-2 shift sol on and 2-3 sol is on.alldata shows it should be 1-2 on and 2-3 on.in 2nd gear 1-2 is on and 2-3 sol is...
2004 Buick Rendezvous Ultra 3.6L Right front headlamp and fog lamp dim VIN: 3G5DB03704
Battery failed on this Buick but before hand I noticed the right turn signal indicator was on steady-with service vehicle soon light on. All bulbs work, but only 8 volts across the right front headlamp fuse. When you turn on the head lights the left front is ...
2006 Cadillac DTS 4.6L MIL Lamp on VIN: 1G6KD57Y46
Hello everyone, thanks for taking the time to read this. I have this '06 DTS with a repeat P0420. The car is very well taken care of and is a regular customer. By all of my testing, this car is running properly and the new cat does not seem to be a problem. It... Trouble codes: P0420 (Catalyst Efficiency Below Threshold Bank 1)
2005 Chevrolet Cobalt LT 2.2L No power, wont rev VIN: 1G1AZ52F75
This customer brought this vehicle to us AFTER He and "AutoZone" spent a lot of money on parts. The issue/problem is it has no power and will not rev up/take thottle. If you play with the throttle slowly you can get it to rev in neutral, but not driving. You c... Trouble codes: P0101 (Maf), P0106 (MAP or BARO out of range), P0068 (MAP/MAF Throttle Position Air Flow Corrolation)

Fixes & Summaries for GM
Fix/Summary Answers
1996 Chevrolet K1500 Cheyenne 5.7L scan tool data VIN: 2GCEK19R3T
Here's what I found out. TP Range: Displays Yes or No. This parameter indicates when the throttle position is within a range that enables shift adapts. Yes indicates that the TP is within the calibrated zone. TP Delta: Displays Yes or No. This parameter...
2002 Chevrolet Trailblazer LS 4.2L transfer cas VIN: 1GNDT13S02
well as i guessed it was the switch on the dash that was giving me trouble after putting a new one in and waiting a week vehicle has not come back and seems to be working fine. thanks for all your help. Till next time
2007 Chevrolet Silverado 1500 LTZ 5.3L Gauges, Tach., Radio, Starting VIN: 2GCEC13J17
I would like to thank everyone who replied to this help request. Unfortunately time to give this vehicle further attention became an issue and the customer took the vehicle to the dealership. Should a solution to this problem surface I will let you know. Thank...
2009 Chevrolet Express 2500 4.8L Oxygen Sensors VIN: 1GCGG25C49
Thanks for the great tips I always learn something when I use this site. I could not find a vacuum leak when it was hot or cold. I could not find any pin holes in the exhaust. I replaced bank 1 sensor 1 O2 sensor because it was a little lazy. The van has been ...
1997 GMC K2500 Sierra SL 6.5L Unknown VIN: 1GTGK29F7V
Costomer is looking for a used unit and converter. so i will leave it as not fixed as of yet but, should be soon. I hope
2005 GMC C5500 Topkick C5C042 6.6L MIL Lamp on VIN: 1GDE5C32X5
Unfortunately I have not corrected the problem but have hopefully found a shop that specializes in these miserable engines. I will make a post of repair when all is corrected. Thanks for the inputs, Nick H Trouble codes: P0046.
2007 GMC Acadia SLE 3.6L 4-5 shift
Thank you all for your help I Will change all pistons and return the original TCM will tell you of developments Lane that waht I expect Piston Problem Greetings to all
2010 GMC Sierra 1500 WT 4.3L drivetrain VIN: 1GTPKTEX6A
Well I have to close this help request for now but I'll be sure to update it when I actually know what the problem is. Further to my previous update the customer installed 4 new tires, drove the truck for three days around town and then headed on a small trip ...
2003 Saturn Vue 2.2L MIL Lamp on, Dtc p1336 VIN: 5GZCZ23DX3
After exhausting all my other avenues of repair which included trying an Autel Maxidas and a Snap-on Verus I had decided to drive this vehicle to another shop that had a Tech2. About a mile from the shop I stopped for gas and after restarting I noticed the CEL...
2008 Saturn Vue XE 3.5L timing cover housing VIN: 3GSDL43N58
Thanks guys, you were correct, there is a coolant crossover manifold on the front of this engine, the alternator & P/S mount are part of the housing. The gasket on the crossover at the rear head was leaking, when I got it apart it was obvious. The gaskets are ...
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