|Prev||Professional Automotive Repair Technical Discussions for June 16, 2013
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Open Help Requests for GM
|2007 Chevrolet Avalanche LTZ 5.3L No Blower at any speed using A/C or Heat VIN: 3GNEC12007
Checked inputs to blower control module-Good except pulsed ground is present even when key is removed. Figured this would cause parasitic draw and drain BATT, but owner says NO. Jumped 12Vdc and ground to blower connector-Blower works fine. Replaced blower con...
|2009 Chevrolet Cobalt LT 2.2L Poor Idle Quality, Misfire VIN: 1G1AT58H79
I have a 09 Chevy Cobalt with a misfire at idle. Engine smooths out when you accelerate. O2 sensor will stay lean. Only cyl # 2 is missing. I checked for vacuum leaks but couldnt find any. I'm thinking maybe the plastic intake is cracked somewhere I cant get a... Trouble codes: P0300
|2006 Pontiac GTO 6.0L Key-less fobs VIN: 6G2VX12U46
So I went off to the dealership technician with TECH-2 could not figure how to erase the previous remote(s) to gain full function of the two new remotes. Once programed the remotes (they say) cannot be reprogramed to a different car. Any way you know how frust...
Fixes & Summaries for GM
|1994 Chevrolet K3500 5.7L Cuts out VIN: 1GBJK34K3R
Thanks to all those who replied. Many recomended that my erractic speed sensor reading may be the cause of the engine cutting out so I attempted to diagnose that first. The truck had two speed sensors one on the transmsission and one one the transfer case. The...
|1995 GMC K3500 Sierra SL 6.5L MIL Lamp on VIN: 1GTHK39F4S
The code 36 on this one is fixed! Like some of you replied the ecm on these are rarely in trouble. Some said to replace the injection pump if code 36 is still there after the idm replacement but when I backprobed the signal from optical sensor from pump with s... Trouble codes: 36 (injection pulse width error response time long).
|2004 Pontiac Grand Am GT 3.4L Cranking VIN: 1G2NW52E54
Cam sensor was shorted which had caused the pigtail/wires to melt. The PCM goes into a fail-safe mode allowing the vehicle to only crank for a short momentary time (half second) which it detects a shorted sensor. Replaced the sensor/pig tail and the vehicle st...