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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for February 8, 2014
International Automotive Technicians' Network (iATN) - Members Only
(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
2004 Chevrolet Epica LS 2.5L No Start VIN: KL1VB52L74
vehicule got towed in crank no start. customer had boosted back wards. I have communication codes, no spark no injector pulse, fuel pump is primeing. biggest concern for me is I cant find any info Mitchell dosnt have epica as an option, anyone else found a com... Trouble codes: P1671 (Comm error), P1673 (Comm error)
2001 Oldsmobile Silhouette Premiere 3.4L defrost function VIN: 1GHDX13E81
alright, this one came in for a complaint of defrost inop/not blowing out defrost vent. another tech here looked at it, and rec. a mode door actuator. installed, still doesnt work and now its my problem. when looking at linkage/ motor under drivers side dash y...

Fixes & Summaries for GM
Fix/Summary Answers
2005 Cadillac SRX 3.6L Misfire, MIL Lamp on VIN: 1GYEE63765
Good afternoon,Thanks for all the help,the problem was the ecm as I thought.After two days the car finally acted up with the lab scope and scanner hooked up.The injector command on the scanner #2 injector went to 0. By the way, the day before the injector sco... Trouble codes: P0202.
2002 Chevrolet Suburban 1500 LT 5.3L No Start VIN: 1GNFK16Z52
A hearty thanks to each of you for the excellent advice as usual. The problem turned out to be a bad ING1 relay in the underhood panel. Probably the biggest hindrance to finding it, was not leaving the vehicle outside in the cold overnight. Happily found it in...
2007 Chevrolet Tahoe LTZ 5.3L Excessive Emissions, Misfire, MIL Lamp on VIN: 1GNFC13JX7
thanks for all of the replies on this post. what I ended up finding was that the dod lifters are not opening the valves on that cylinder intermittantly. so I suspect what was happening is that the intake port was flooded with fuel and when valves did start to ...
2001 GMC Sierra 1500 SL 5.3L Poor Idle Quality VIN: 1GTEK19T61
Looks like we finally got this one fixed . I had to replace PCM with latest update. This also took care of a Inop. odometer & gear selector in cluster. Thanks a lot for all the high quality input you IATN techs offered up, Thanks again guys..
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