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Professional Automotive Repair Technical Discussions for March 20, 2019 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1993 Chevrolet C3500 Cheyenne 6.5L no upshift. VIN: 1GBKC34F4P i got a dinasour here,looking for some clarification.does not shift has first and rev.no communication with tcm.tcm has power/grnd etc; connector at trans has power pin e pink?.one bit of info the wiring diaghram for the tcm doesn,t match tcm to trans,i,ll... |
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| 2011 Chevrolet Silverado 1500 LT 5.3L MIL Lamp on VIN: 3GCPCSE04B Hi everyone, this truck continues to have p0604 hard code after two reman ecm's. All power and grounds to pcm have been checked and all is well. there no codes in any other module. ECM has always fixed this code for me and I suspect another bad module. I d... Trouble codes: P0604 |
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| 2012 Chevrolet Malibu LT 2.4L Cuts out, Stall VIN: 1G1ZC5E0XC Car will stall going down road at any speed. no check engine lites or codes. No security light. will start for about 5 seconds the stall.disconnecting the battery and re hooking it up will start and run fine for a day or to then the same thing happens agai... |
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| 2013 GMC Yukon Denali Hybrid 6.0L starting VIN: 1GKS2GEJ7D Vehicle in MINOR front end collision, bumper cover & support damaged. A/C condenser,radiator & radiator support NOT damaged. ALL computers scanned, NO CODES STORED, however 12v Battery was DISCONNECTED ! Serial Data Gateway Module had CRASH Detected messag... |
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| 2014 GMC Sierra 1500 Denali 6.2L Misfire VIN: 3GTU2VEJ4E have misfire cyl.5.checked compression,ok 240 cranking,80 runnung.no vacuum leaks.this cylinder is not a adm dropping cylinder.pulled valve cover,normal valve movement.pulled intake to get at injector and harness.ohmed ok.1.8ohm.tried to check noid but wit... Trouble codes: P0300 (Misfire) |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2007 GMC Envoy SLE 4.2L No tach VIN: 1GKDT13SX7 Used a lab scope on crank sensor. Had what I call an anomaly that was consistent in firing order. Pulled sensor, and looked at reluctor with borescope. Found a gouge or welding slag on reluctor about 20 thousanths of an inch thick. Replaced engine with another... Trouble codes: P0335, P0336, P0171. |
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