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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for April 29, 2020
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Open Help Requests for GM
Help Request Answers
2002 Chevrolet Trailblazer LS 4.2L Misfire VIN: 1GNDS13S62
I have switched coils and plugs, smoke tested for vacuum leaks, done a compression test running and cranking, spark jumps 25kv and have not had any luck so far. I checked the injectors with my power probe 4 at the pcm and they all give the same readings. I... Trouble codes: P0300 (Random misfire)
2008 Chevrolet Tahoe LTZ 5.3L Misfire VIN: 1GNFK13038
Intermittent cylinder 7 miss fire. GM techs please help!. This 08 Tahoe has an intermittent miss fire that occurs only on light acceleration, and occasionally on deceleration. A ten mile test drive will generally result in a 10 to 15 second long miss fire ... Trouble codes: P0300
2011 Chevrolet Silverado 1500 LT 4.8L Misfire
I have a 2011 Silverado with two codes p0300-p0219B . After scanning the truck I notice #6 cylinder had multiple misfires ,cylinders 3 and 4 also had them but they were very random . The #6 cylinder is the one that's coming up with the most but it isn't co... Trouble codes: P0300, P0219
2008 GMC Sierra 3500 HD SLE 6.6L Stall VIN: 1GDJK34668
Customer bought truck from auction (I know...) Stalling cold and EGR plugged. Customer had EGR deleted (not by us). Intake air heater disconnected and P154B code when vehicle was purchased. We tested and found intake air heater faulty (part 2 weeks away). ... Trouble codes: P154B, P0506 (Idle speed low)
2011 GMC Yukon XL 1500 Denali 6.2L ride height VIN: 1GKS2MEF6B
Thank you in advance We replace the rear air shocks on this Yukon and found 1 ride height sensor plastic tab broken. Replaced both ride height sensors and now we our off on ride height 1 inch left to right. I found the recalibration procedure in Alldata se...

Fixes & Summaries for GM
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