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Professional Automotive Repair Technical Discussions for November 3, 2015 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2005 Cadillac SRX 3.6L MIL Lamp on, Pinging VIN: 1GYEE637X5 Found fuel trims Bank 1 -11, Bank +25 on acceleration. Found a PCV elbow off, no change. Found Bank 2 (driver's side) A/F sensor not moving and open loop. Replaced the sensor. Fuel isn't off as much, but still pings. Cams are working OK. Wondering what will th... |
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| 2002 Chevrolet Trailblazer LS 4.2L Surge, Misfire, MIL Lamp on VIN: 1GNDT13S02 inital problem vehicle came in cyl no. 2 misfire replaced coil vehicle came back 2 weeks later with cel on code 1515 setand 1516 set sometimes 1512 sets and at idle front 3 cylinders you can pull connectors off coils and no change Trouble codes: 1515 (1516 -), 1516 (testing and results) |
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| 2004 Chevrolet Venture LT 3.4L No Start VIN: 1GNDX13E04 Hi all I have this Chevy Venture that has no injector pulse. On the scan data there is no 24X signal. I ohmed the circuit back to the computer and all proved good. I then replaced the 24X sensor but the same results. There is voltage at the sensor equivalent t... Trouble codes: P0405 (EGR position circuit low voltage), P0463 (Fuel level sensor circuit high voltage) |
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| 2007 Chevrolet Suburban 1500 LTZ 5.3L harsh 1-2 shift VIN: 1GNFK16347 Hello everyone. I have this suburban in the shop with a harsh 1-2 shift and code p0717 code. I just installed this trans after the original failed with no drive only low. install went off with no problems. road tested and topped up fluid and road test about 10... |
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| 2013 Chevrolet Traverse LT 3.6L Misfire VIN: 1GNKVGKD3D this vehicle runs good for a while and then misfires and the check engine light,engine power reduce,service traction control,and service stabiltrak lights come on and a severe misfire Trouble codes: P1682 |
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| 2000 Pontiac Bonneville SSEi 3.8L interior lights VIN: 1G2HZ5416Y The interior lighting on this vehicle will not turn off even if the vehicle is placed in gear and driven. the only time the system will shut down is after the ten minute rundown protection kicks in. they work as they should from the ext of the car as in the ca... |
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| 2008 Saturn Astra XE 1.8L steering column control module VIN: W08AR67198 Sorry to bother anybody with this simple help request but im hitting a dead end everywhere I look. Im trying to calibrate the steering angle sensor on this astra. The tech 2 is asking me for a security code before letting me continue. The steering column contr... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1999 GMC C3500 Sierra SL 6.5L No Start VIN: 1GDKC34F8X found, main engine harness running to injector pump, wiring had melted into each other, an corrosion build up in wiring occurred causing resistance causing wires to melt into each other an cause short |
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| 2004 GMC Sierra 1500 SLE 5.3L Hesitation, Surge VIN: 2GTEK13T14 Howdy Y'all! Thanks for all your input and getting me back on point! When I went back to look at the data, I realized the truck was going into open loop because the Coolant sensor was dropping out!! Had real crappy connection where a new sensor and wiring had... |
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| 2010 GMC Savana 2500 4.8L Blower VIN: 1GTZGFBA3A Thanks for all the replies,this one was one of those non standard failures,Found wiring chaffed and shorting to another wire keeping the run relay energized.The wiring harness from the under seat fuse box under the drivers rubber mat about two feet from the fu... |
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