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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for May 21, 2015
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Open Help Requests for GM
Help Request Answers
1995 Buick LeSabre Custom 3.8L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1G4HP52LXS
vehicle came in with code p0341. complaint is vehical stalls at times runs rough. checked rmp signal on scanner and cam and crank counts which max out at 255 counts. replaced cam and crank sensor checked ring on crank pulley for damage. nothing wrong with ring... Trouble codes: P0341
2003 Chevrolet Astro 4.3L Unknown VIN: 1GNEL19X13
Van came in with both a vibration and noise when getting above 10mph. He has had both the front differential rebuilt by a very reputable local company and the transfer case replaced with a factory remanufactured unit and nothing has changed. We removed the fro...
2004 Chevrolet Aveo 1.6L Misfire VIN: KL1TD62644
Owner brought because mil is on, flashing while driving, shop that done work has give up. On compression test got 135 all but number 3 with 125. With data stream can see timing at 4 with no advance. Also can hear timing belt whine. Pull covers and it looks as ... Trouble codes: P0300 (Missfire), P0420

Fixes & Summaries for GM
Fix/Summary Answers
2004 Cadillac CTS 3.6L No Start VIN: 1G6DM57734
Many thanks to all who responded.Steve led me in the direction of 12 volts to pcm on pink wire with the black stripe. I only had 2 volts.Replaced main relay and got 12 volts now.Many thanks to Juan [...] for his help in leading me towards the ignition tumble...
2005 Chevrolet W3500 Tiltmaster W3S042 6.0L MIL Lamp on VIN: 4KBB4B1U55
Thanks to the three guys that replied to my request! I did put a new throttle body on like I said in the related repair history, but didn't help. I was looking for the location of the TAC module and Zack was right on the money. You can see the module from unde... Trouble codes: P0120, P0220, P1516, P2101, P2135.
2006 Chevrolet Impala LT 3.5L Vci # VIN: 2G1WT58K66
Thanks for the replays here is what I had to do to solve the problem I ran into. The BCM was superseded to a different BCM module number and I couldn't flash the replacement module with the standalone tis 2000 on pc even though its and year covered by the soft...
2003 GMC Yukon XL 1500 SLE 5.3L evaporator VIN: 1GKFK16Z43
Thanks for the help, the cycling switch was bad, low pressure got as low as 14 and comp still running. Replaced switch and checked, cuts out at 21 now and back on at 40 and works good. Thanks again for all the help. Mike
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