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Professional Automotive Repair Technical Discussions for October 25, 2016 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2000 Chevrolet S10 2.2L hard startng VIN: 1GCCS1446Y This Chevy S10 runs normal as long as the engine is running. However, one out of every 7 or 8 starting attempts, the engine has a difficult time starting as if the timing is way too far advance. Code P0335 also appears during cranking. With a dual trace lab sc... Trouble codes: P0335 (Crank Position Sensor Circuit) |
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| 2012 Chevrolet Tahoe LT 5.3L light on the dash VIN: 1GNSCBE05C Hi to all tech. I working on 2012 Tahoe 2 wheel drive, starting , ran fine ... only ABS light on the dash all time , no communication to the EBCM module , but communication the rest of module no problem ok . Only ABS module underneath the left sub frame. All t... |
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| 2002 GMC Jimmy SLS 4.3L SES lamp VIN: 1GKDT13W72 Came in for wild fluctuation in tach over 2000rpm and cut out of engine. Replaced crank sensor. Now get P0300. Can see #1 & 4 misfire at above idle rpm. Good at idle. No EGR, no oil burning. Fuel fouls #4 plug. Fuel trims adding full %. )2 sensors react to for... |
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| 2003 Hummer H2 6.0L instrument lights VIN: 5GRGN23U23 Hello. I have this Hummer H2 with a battery drain problem. It came in with a missing radio and it is evident the vehicle was crashed at some point. The instrument panel lights and PRNDL never turn off. I get a code B1440 ignition power mismatch. While monitori... |
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| 2003 Pontiac Montana 3.4L not cranking or starts VIN: 1GMDX03E23 I have a 2003 Pontiac Montana 3.4 177k miles that I can't make it start, I don't get communication with engine or transmission modules, I can communicate with all other modules,(ABS)(PATS)(SRS)(ICP), but no communication with engine or transmission module. I g... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2005 Chevrolet Equinox LS 3.4L No Start, Cuts out, Stall VIN: 2CNDL13F35 THANKS for all the great information. So this car end up being fixed and during the fix another problem came up. The crank position sensor with connector did fix the C0236 code. The problem with the stalling issue end up being the EGR. Reinstall the EGR and ... Trouble codes: C0236 (testing and results). |
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| 2008 Chevrolet Silverado 3500 HD LT 6.0L Starting VIN: 1GBJC39K28 thanks to Jeremy for posting the bulletin , identifix ended up steering me clear of the transfer pump as a cause and diagnostics steered to the pcm , we replaced the pcm with the same results. upon speaking with another tech at identifix he agreed it seemed th... |
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| 2010 Chevrolet Aveo5 LS 1.6L Excessive Emissions, VIN: KL1TD6DE0A thank you guys again i had to drive the car more to get it pass thank you guys again |
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| 2003 GMC Sonoma SL 4.3L Transfer Case VIN: 1GTCT19X73 I finally got this back in. The problem ended up being the transfer case vacuum switch (2 actually), and wiring (but not wiring in the usual spot). I ended up checking voltage drop from the TCCM to the Encoder (using a Power Probe). I assumed the red and black... |
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