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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for April 4, 2014
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
1988 Buick Century Custom 2.5L Stall, floods VIN: 1G4AH51R7J
Please help GM guys. This one sat for three or more years. towed in. replaced pump/strainer/filter and cleaned out tank. .. ran great after adding fresh gas for about fifteen minutes. then the real problem started . stalls after a few min every time. found all...
2007 Buick LaCrosse CXS 3.6L Misfire, MIL Lamp on
Car came in running real bad found coil curcuit codes for 2# 4# 6# .Found problem to be poor ground at coil ground .Tightened and road test OK
2004 Chevrolet Suburban 1500 Z71 5.3L Starting VIN: 1GNFK16Z34
Hi I have a 04 suburban cam in for a battery draw problem the truck was driven into the shop. we replaced the d/side door module with a new one from dealer now truck wont start I tried the 30 min key relearn even though the dealer said the switch wasn't progra...
2005 Chevrolet Express 2500 4.8L power steering pump VIN: 1GCGG25V85
Hello GM techs! This truck is ruining my week. It came in about a year ago with a faulty power steering pump. Replaced pump and everything was fine. 6 months later we replaced pitman/idler arms and had it aligned. Truck was in today and power steering pump was...
2008 Chevrolet Impala LT 3.5L no start VIN: 2G1WT58K98
08 chevy impala 3.5 vin k --towed in no start --found blown fuel pump fuse --replace fuse --key on engine off would blow fuse --disconnected fuel pump wiring with new fuse, fuse didn't blow --replaced fuel pump /fuse doesnot blow --fuel pressure checks 60+ ps...
2010 Chevrolet Colorado LT 3.7L abs VIN: 1GCJTCDE8A
This one is good one. truck came in with 3 abs codes and over activate abs when coming to a stop. codes c0035, c0040, c0050. LF, RF, RR. I Have loaded every wire for the wss, all good. Scoped all four wheels and I have a good square wave. 11.6v going to every ...

Fixes & Summaries for GM
Fix/Summary Answers
2000 Chevrolet Silverado 1500 5.3L Fog Lights VIN: 2GCEK19T3Y
Thank you for your time. int park fuse was bad, left end of dash.problem was the daytime running lights were on & was throwing me off. looking @ wiring diagram specifically fog light relay I had all inputs necessary a4 had 12 volts, fog light fuse had 12 volts...
2005 Chevrolet Trailblazer LS 4.2L A/C Compresspor VIN: 1GNDS13S05
I did not fix the vehicle. I was on vacation and it was given to another technician. Last I heard he installed a control head and it continued to have the same problem until a re-learn procedure was completed. When I return from vacation I'll get the complete ...
2006 Chevrolet Silverado 2500 HD WT 6.0L long start VIN: 1GCHC29U56
I talked to the customer and he says the vehicle has been starting great. I'm not convinced it has been fixed and maybe the problem will show up again once it gets cooler. thanks everyone for the help Trouble codes: P0622, P1637.
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