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Prev Professional Automotive Repair Technical Discussions for May 31, 2009
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Open Help Requests for GM
Help Request Answers
1988 Chevrolet S10 4.3L No Start VIN: 1GCDT19Z5J
man i'm stumped customer towed trk in no start no power to fuel pump. I tested relay found no signal from ecm to the relay removed ecm tested wires found no signal out of ecm on green wire I have power and ground to the ecm from ign switch. determined fuel pum...
2002 Chevrolet Avalanche 1500 5.3L No Start VIN: 3GNEC13T52
2002 avalanche,will crank for a split second and shutoff imediately,as if the anti-theft is activated.suspect vehicle hit by lighting,after nearby lightning strike,onstar light is red and now wont run,Tech2 wont communicate with any module,suspect BCM ok due t...

Fixes & Summaries for GM
Fix/Summary Answers
1998 Cadillac DeVille 4.6L Anti-Theft VIN: 1G6KD54Y1W
A big thanks to all who replied. The fix was to program the pcm from scratch like it was a new one. Then program the vehicle theft deterrent system. I had programmed the vehicle theft first on the first go round,then programmed the pcm. Why it made a diffe...
2001 Chevrolet Cavalier 2.2L MIL Lamp on VIN: 1G1JC12471
thanks to all ,,turned out to be evap purge valve . Man what a spot to change .. would not send vaccuum to system far four days no ses light,, sweet Trouble codes: P0440.
2003 Chevrolet Suburban 1500 LS 5.3L Poor Idle Quality, Cuts out, Stall, Misfire VIN: 3GNFK16Z73
Thanks to all who replied, most of you were right on with the converter, replaced it and it started right up and ran good, Also thanks to you guys that said these things have a history of bad intake gaskets, found a massive leak around the upper plenum seals a...
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