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Prev Professional Automotive Repair Technical Discussions for April 15, 2013
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
2012 Buick LaCrosse 2.4L battery light VIN: 1G4GA5GR4C
The battery should get charged from the hybrid battery as far as I can tell. The body control module tells the engine module when this should take place. The body module has a code B1517 battery voltage not plausible. I think this is my problem but the data fo...
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1998 Cadillac DeVille Concours 4.6L a/c compressor VIN: 1GEEH90Y5W
My customer came in to me after purchasing this vehicle with an empty a/c system last year. I recharged the system and it worked perfectly. He returned later and I found that the compressor was leaking but he chose not to fix it until the next summer. This spr...
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1999 Cadillac Seville STS 4.6L Accessories VIN: 1G6KY5496X
1999 Cadillac STS 4 door, used vehicle from car lot. Battery drain over night. Found 4 amp drain in system, Remove fuse 7(I/P fuse) at underhood fuse box. This is the fuse for the instrument cluster and the climate control panel. Now draw down to 80 milliamps....
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1993 Chevrolet C1500 Cheyenne 5.7L Air inlet actuator VIN: 1GCDC14K4P
When starting, and stopping vehicle. An irritating flapping Noise comes from the blower motor location, Directly from the Air Inlet actuator. I have seen these strip the gears internally before. And It looks as though the entire AC /heat control may have to be...
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2007 Chevrolet Silverado 2500 HD Classic LT 6.0L Hesitation VIN: 1GCHC24U47
This truck originally came in with a code P0174 too lean bank 2. I replaced the b2s2 o2 sensor when I saw a reading of 0 volts intermittently on scan tool. Cleared code and drove to complete monitors for smog check and code P0420 cat efficiency code came on. I... Trouble codes: P0420 (Cat sys efficiency below threshold bank 1), P0174 (Too lean bank 2)
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2005 GMC Sierra 2500 HD SLE 6.6L Seat Heater VIN: 1GTHK23225
Customer states seat heaters didn't work prior to a road trip and then started working. On the way back it quit again. When you press back/seat heater switch lights will come on then shut off right away. Does this on both driver and passenger side. All the fus...
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2012 GMC Terrain SLT 2.4L power liftgate VIN: 2GKALWEK6C
Hello fellow IATNer's..before anything is said, this vehicle was an insurance write-off hence no warranty..BCM and liftgate module both re-flashed...vehicle collision in the front..everything else is functioning correctly (door locks, windows,seats,sunroof etc...
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Fixes & Summaries for GM
Fix/Summary Answers
2004 Chevrolet Malibu LS 3.5L Rear VIN: 1G1ZT548X4
CLIENT DOES NOT HAVE THE FUNDS AVALIABLE TO REAPIR THIS CAR OR TO SPEND THE TIME TO DIAGNOSIS IT PROPERLY. THEY WILL BRING IT BACK WHEN THEIR FUNDS ALLOW
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1999 Oldsmobile Aurora 4.0L Charging VIN: 1G3GR62C4X
Thanks guys for the info,yeah it was what I thought and a lot of you on here,a faulty reman alt,probity cooling fans drawing excessive current might have knocked it out along with the original,it's fixed now,charging well 14.1-14.2 with everything on and ac fu...
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