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Professional Automotive Repair Technical Discussions for January 17, 2017 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2007 Cadillac DTS 4.6L MIL Lamp on VIN: 1G6KD57917 After 3 or 4 start ups, the check engine light will come on with code p0411. The car drives great, the pressure readings are normal when the pump runs. I can command the air valve and the pump. Note: it only happens at start up. Trouble codes: P0411 (Secondary air injection incorrect air flow) |
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| 1984 Chevrolet Corvette 5.7L Headlamp VIN: 1G1AY0787E OK Corvette techs. I have two problems. Read further down for the second problem. I have this vette with a right headlight that is out of synch with the left after repairing the passenger headlight motor. Another words one will be up and the other will be dow... |
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| 2001 GMC Jimmy Diamond Edition 4.3L ABS light VIN: 1GKDT63W91 Code CO268, Pump Motor Circuit Brakes work good, boost is normal you can cycle koeo, abs completes diagnostics, light off koer, move forward / reverse slowly no light. accelerate at 4 - 5 mph, lights on. code CO268. abs diagnostic freeze frame data ok, fro... |
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| 2004 GMC Sierra 2500 HD SLE 6.6L Tcm failure VIN: 1GTHK23234 Hi fellow techs. I need some good direction on this GMC truck. This thing first showed up on the hook with tranny fluid pouring out of middle of truck. Closer inspetion found rear U-joint had failed and shook the rear of trans casing causing it to break and du... |
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| 2004 GMC Sierra 3500 6.0L tank switching VIN: 1GDJK34U64 Good afternoon one of our service trucks has an issue of not changing tanks. It has 2 fuel tanks the gauge never goes above half way and after you drive the truck the fuel light will come on, you can put 15 gallons in the front but the rear tank is always full... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2000 Chevrolet K3500 LS 7.4L Surge, Misfire, MIL Lamp on VIN: 1FTSM83F0A After driving the truck I was able to see the actual and desired egr position start to separate. The actual would start to go above and below desired. I replaced the egr valve and the new valve was much more stable. The customer just returned from a trip and ... |
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| 2011 Chevrolet Equinox LS 2.4L Poor Idle Quality, Hesitation, Stall, MIL Lamp on VIN: 2CNFLCEC8B Thanks to all who replied; your valuable time, expertise, opinions, and experience are much appreciated. Several expressed opinion that the vehicle is ready for junk yard. Our opinion is that the vehicle is not a rust bucket, is well maintained, drives very ... Trouble codes: P0420 (Catalyst System Efficiency Below Threshold Bank 1), P0011 (Intake Camshaft Position Timing - Over-Advanced Bank 1), P0014 (Exhaust Camshaft Position Timing - Over-Advanced Bank 1), P0016 (Crankshaft Position - Camshaft Position Correlation - Bank 1 Sensor A), P0171 (System Too Lean Bank 1), P1133 (HO2S Insufficient Switching Sensor 1). |
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