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Professional Automotive Repair Technical Discussions for October 28, 2014 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1994 Buick Skylark Custom 3.1L Poor Idle Quality VIN: 1G4NV55M4R the first time the vehicle was brought to the shop the engine was idling high. cleaned throttle body and replaced and adjusted idle control valve. the engine runs good for several days and then will not idle at all no matter the engine temperature and there is... |
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| 2000 Chevrolet S10 4.3L Red Brake Light VIN: 1GCCT19W9Y This truck came in for red brake light comes on dash while turning on corners; even the red brake light comes on while idling by just turning the steering either direction. But when you turn the steering back to center, the light turns off. I check for fluid l... |
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| 2003 Chevrolet Malibu LS 3.1L heater core VIN: 1G1NE52J53 have this malibu in for coolant leak.found heater core leaking.was hoping this was similar to earlier smaller gms, and core could be changed without dash removal.service info says dash comes out.however, one person on the internet (lol) says it can be done wit... |
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| 1995 GMC C1500 Sierra SL 5.0L hazards VIN: 1GTEC14H7S hi guys,i have this95 c1500 headach.the hazards will not flash when the brake pedal is applied.i installed a new gm combo switch,brake light sw,hazared sw.also replaced all the bulbs,checked all sockets,connectors.this does not have any trailer wiring.i have t... |
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| 1997 GMC K1500 Suburban 6.5L No Start, MIL Lamp on VIN: 1GKGK16F6V This customer has had this problem for a while, where after a 10 minute hot soak, the engine will not start until you let it sit for 2 hours. If you try to start it immediately after shutting it off, it will start just fine. I haven't diagnosed very many of t... Trouble codes: P0236 (Boost sensor 1 out of range), P0278 (Cylinder 6 balance fault), P0719 (TCC/brake switch B circuit signal low/short) |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1994 Chevrolet Camaro Z28 5.7L No Start VIN: 2G1FP22P9R Thanks for all the input, not sure why this veh wouldnt start when cranking with key, checked voltages and grounds at ign and pcm and staying at 11v cranking, but wouldnt pulse injector, would crank everytime with remote start, cust opted to install remote sta... |
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| 2004 Chevrolet Trailblazer LS 4.2L Timing Chain VIN: 1GNDT13S34 everything came out fine with lining up the dark links to the marks on sprockets, vehicle is now running smooth and has passed the emissions test. the misfire on cylinder 6, as well as the misfire on cyl 1 that showed up while driving, were caused by faulty c... |
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| 2007 Chevrolet Cobalt SS 2.0L Clutch VIN: 1G1AP18P97 I was waiting for the customer to drive for a week or so before closing. He reports all is well. We were suspicious of elbow where master cylinder hose connects and a steel line goes to slave cylinder, allowing air into system. Upon examination,found corrosion... |
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| 2004 Pontiac GTO 5.7L Cuts out, Misfire, Reduced power VIN: 6G2VX12G94 Here is what I found...I checked all modules that I couldn't communicate with and found no problems,I figured maybe one of those modules was shoving garbage down the UART lines but that wasn't the case. I checked all the UART lines from ADL connector to all no... |
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