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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for January 15, 2012
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Open Help Requests for GM
Help Request Answers
2000 Chevrolet Malibu LS 3.1L MIL Lamp on, Security indicator VIN: 1G1NE52J7Y
Sometimes when engine is started the headlights,fuel gauge,temp gauge, and power windows. do not work a security indicator in the dash comes on, Ocassionally the SES light comes on. Trouble codes: P0449
2007 Chevrolet Suburban 1500 LTZ 5.3L key fob and door locks VIN: 1GNFK16387
Vehicle came in customer complaining that both key fobs quit working, has been unlocking truck with key in door. Then door lock cyl. would not turn anymore and key fobs still don't work. Checked vehicle and sure enough driver door lock cyl. would not turn with...
2003 Saturn L300 3.0L low power/rpm loss VIN: 1G8JW54R53
When you accel hard the engine only goes to 5000 RPM and the power is not there. The trans down shifts normally but the engine just doen't rev up fully. Scanner shows Engine Load at 58% with WOT on road test. If I dissconnect the MAF sensor, the engine will sp...
2004 Saturn Vue 2.2L Engine VIN: 5GZCZ23D94
I got 2 problems, I hope someone can give me some techical & business advice. First I replaced timing chain guides (because the long one on the intake side had a bolt come loose and let the timing chain get loose and bent all the intake valve. Machine shop gro...

Fixes & Summaries for GM
Fix/Summary Answers
1997 Chevrolet P30 7.4L MIL Lamp on VIN: 1GBKP37N3V
OK everone here it is. This vehicle really had nothing wrong with the PCM it was the configuration installed by GM. The chassis of this 1997 Winnebago is a 1995 N chassis or 7.4L Throttle Body so wiring diagrams and code definations where no problem once I got...
2002 Chevrolet Silverado 1500 4.8L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall
I will call this vehicle a fix I replaced intake Gaskets. with the Fel Pro brand steel gaskets.It ran very good on the test drive. I had wanted to put more miles on it. However we gave it back to the operator.it has been out for over a week with no reported tr...
2005 Chevrolet Trailblazer LT 4.2L Blower speed front VIN: 1GNDT13S45
Well I must say...I feel like a novice...this one got me. I will tell you why. I never thought to test the Blower fan itself because it was working 90% of the time. Then it dawned on me that I missed a VERY BASIC TEST! ... Why didn't I test the Power/Ground at...
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