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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for August 11, 2014
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Open Help Requests for GM
Help Request Answers
2008 Buick Lucerne CX 3.8L 1-2 Shift VIN: 1G4HP572X8
Hello , Do anyone know if a 4t65-e transmission will up shift from a stand still at 100% throttle opening ? I think this could be a normal condition. 99% and below the transmission will up shift. Thank you AL.
2001 Cadillac DeVille 4.6L No Start VIN: 1G6KD54YX1
This car came in for check over after the purchase of this car. It had many codes for misfire, TCC, Secondary air pump, crank and cam codes and PCM memory. The battery died over night and I charged it up in the morning and did a compression test and injector d... Trouble codes: P0300, P0335, P0340, P0385, P0410
2006 Chevrolet Uplander LS 3.5L ABS Module VIN: 1GNDV23L76
This vehicle came to the shop with a couple of issues. EVAP large leak and Fuse #13 at Under hood fuse compartment blown. EVAP is repaired however ABS remains an issue. Found original ABS module was shorted to ground internally causing fuse #13 to blow. Replac...
2007 Chevrolet Silverado 3500 HD LT 6.0L Fuel gauge VIN: 1GBJC34K07
This truck was towed in because it had died. I checked fuel pressure. Had no fuel pressure. Put gas in front tank and it started. Gauge shows 24% full and the front tank is empty but it never commands the transfer pump on. I can apply 12v to the tan wire at th...
1992 Pontiac Bonneville SE 3.8L Poor Idle Quality, Stall VIN: 1G2HX53L0N
Well this one came from antother shop so now its my headache. This vehicle will die intermittently when coming to a stop or at an idle. The car has no codes or misfires. I hooked a fuel pressure guage up and went on a test drive. when it does stall the fuel pr...

Fixes & Summaries for GM
Fix/Summary Answers
2002 Buick Rendezvous CX 3.4L ac pressures
Most of you were right there was a blockage on the high side caused by the desiccant bag coming apart thanks for all the help
2007 GMC Yukon XL 1500 Denali 6.2L Temperature VIN: 1GKFK66817
Fixed! We received 5 replies (very quickly, I might add) and 4 suggested the left temperature door actuator might be the culprit. We closed the shop for vacation and thus the long time between posts. The mechanic working on the vehicle volunteered to replace t...
2003 Oldsmobile Silhouette Premiere 3.4L Mechanical VIN: 1GHDX03E53
It looks like the system had too much oil added. I recovered the system and found that the machine spit out more oil then usual. After I recharged it the temps were cooler and there was no gauge fluctuation. Thanks for all your help guys.
1998 Pontiac Firebird 3.8L Hesitation, Stall VIN: 2G2FS22KXW
we replaced all six fuel injectors and the fuel pressure regulator, the car idles and runs good , except on acceleration, is very sluggish until it picks up speed. advised customer that it needed an new maf sensor he declined further repair and is gonna finish...
2003 Pontiac Grand Am SE 2.2L Electronic VIN: 1G2NE52F63
Thanks for all the advise. We decided to perform the repair. What a pain! Being the first Grand Am with a 4T40 that I have done. I went with the leave on the carrier routine and did them with the carrier tilted and the trans tilted. Not real fun. ...
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