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Prev Professional Automotive Repair Technical Discussions for August 14, 2014
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Open Help Requests for GM
Help Request Answers
2004 Buick Rendezvous CX 3.4L Pcm & Tcm VIN: 3G5DB03E44
This vehicle came in with SES light on. Attempted to check for DTC's, but received "No Comm" message on my Solus Pro. Proceeded to check for DTC's in all modules. Could not communicate with TCM. However, could communicate with ABS, Airbag, BCM, IPC, and TPMS (...
2006 Buick Allure CX 3.8L Stall VIN: 2G4WJ58296
Good Afternoon. I have a 2006 Buick Allure that is stalling. The conditions are that it has to be in gear either drive or reverse and the throttle must be depressed. This can happen in the shop or on the road. It is quite intermittent however which makes it ha...
1998 Chevrolet Corvette 5.7L Instrument Panel Voltmeter VIN: 1G1YY22G6W
This 1998 Corvette has a problem with the digital and gauge readout on the instrument cluster. Although at the battery I have about 12.7 volts with all loads on (blower motor, air conditioner, wiper motor, rear defroster, radio, high beams, fog lamps and radia...
1999 Chevrolet Silverado 1500 4.8L Mechanical VIN: 2GCEK19V4X
Got another GM K series truck that needs to have all the brake lines replaced. I normally fabricate the lines with Surrauto brake line and fittings. I will spend the better part of a day completing the repair. Anyone used the line kits that are now available? ...
2000 Chevrolet Astro 4.3L Hesitation, Surge, Cuts out, MIL Lamp on VIN: 1GCDL19W2Y
This van idles great and revs up in the shop just fine, but driving down the road after warm it is worse and under a load bucks and looses power. Fuel pressure is good and doe's not drop, we replaced Mass air flow sensor and the P0102 code says mass air flow s... Trouble codes: P0102 (Mass air flow low)
2003 GMC Savana 3500 6.0L Fuel Pump VIN: 1GDJG31493
I folks: This cube van will only run with the 4 ways on, and headlights kill that when on. Fuel pump pressure surges to 4 ways when it runs. Has about 7 volts short to ground, measured at frame or fuel pump ground. We replaced the fuse block under hood because...
2004 GMC Envoy XUV SLT 4.2L Rear End Locks Up In Auto 4wd / 4wd Only VIN: 1GKET12S44
The rear end locks up when driving straight only in 4wd or auto 4wd and releases when turning corners. Code scan found several present BO780, BO790, B2795, C0321, C0359, C0374. I found Dex VI for fluid in the T-Case and changed it out with the Auto Trak II but...

Fixes & Summaries for GM
Fix/Summary Answers
2006 Buick Lucerne CXS 4.6L magnetic ride control VIN: 1G4HE57Y46
I am sorry to report that this customer is not going to go ahead with anymore diagnostics. We tried using a variety of resistances, with no success. I thank all who have offered help. Regards
2001 Chevrolet Impala 3.4L Remote keyless entry VIN: 2G1WF52E51
No one really had any info on this, and I could have "put it back like it was" if I had some wiring info... Took it to a shop that installs alarms and had it reinstalled.
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