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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for April 3, 2011
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Open Help Requests for GM
Help Request Answers
2001 Chevrolet Silverado 1500 4.8L can't complete obd2 VIN: 1GCEC19VX1
Hello fellow techs. We have a 2001 chevy silverado that failed the emissions inspections due to incomplete monitors. Customer said he replaced battery 2 months ago, since then, no repairs have been made, vehicle runs good, no check engine light on, we connecte...

Fixes & Summaries for GM
Fix/Summary Answers
2003 Chevrolet Blazer LS 4.3L heater core VIN: 1GNCS18X93
i flushed the core both ways with warm water and air until it flowed free and all is good for now. customer is going to get some money together so we can replace the lower intake gaskets and core
2004 Chevrolet Silverado 1500 4.8L readiness monitors VIN: 1GCEC14V64
Thanks all that replied, Most of you were dead on. After talking to my local dealership,(fortunately I went to high school with the head service writer), I decided to put in new PCM. Problem solved. I know a few of you went through a little extra trouble to he...
1999 GMC K1500 Suburban SLE 5.7L No Crank VIN: 1GKFK16R9X
okay what we found after going over this several times, is that whoever installed the aftermarket alarm tied it into the DLC and had a burnt diode tied into the power wire. i had removed the brain of the alarm earlier but it seems to have already done the dama...
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