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Professional Automotive Repair Technical Discussions for August 6, 2015 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2001 Buick Century Limited 3.1L Compressor VIN: 2G4WY55J91 This thing is kicking my butt. Customer complaint of A/C blowing "hot" when driving on the highway. During test drive I found that at highway speeds the compressor would turn off and would not cycle back on. Brought the car back to the shop and hooked up the ... |
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| 2003 Buick Regal LS 3.8L No Start VIN: 2G4WB52K73 Intermident no crank,if you repeatly try it will crank & start,sometimes starts on first try, At all times crank or no crank it has no cumminication with any modules,OBD power & grounds are good,shift interlock doesnt function,check engine light does come on w... |
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| 2002 Chevrolet Express 3500 5.7L No Start VIN: 1GBJG31R92 I was doing an injector balance test using the Modis Ultra on the now sealed-off rail of this CFI injected truck. The test completed nicely ONCE, giving me the results I expected. 6 of 8 poppets are stuck. However, I wanted to show my tech the results and brou... Trouble codes: P0300 |
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| 2004 Chevrolet Silverado 2500 HD 6.6L air conditiong VIN: 1GCHK23174 the ac blows cold for 5 or 10 minutes then the compressor shuts off. Bypassed the switches and it still stays off. There is something the ecm is telling to keep the ac off. no codes stored. If i jumper the relay it will freeze you out of the thing |
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| 2007 Chevrolet Silverado 1500 LT 4.8L Hvac VIN: 1GCEK19C17 Customer came back stating popping noise under dash. Found acuator popping. Customer stated that before noise started you could switch hvac from defrost to vent fine. Then it started going from defrost to vent , then goes back to defrost by itself. After check... |
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| 2007 Chevrolet Cobalt LT 2.2L coolant temperature VIN: 1G1AL15F57 This Vehicle Came in on the hook no start found low cylinder compression head redone by local machine shop new time chain comp kit , new coolant pump , balance chain , thermostat coolant temp sensor, etc. put together now it over heats cant get air purged out ... |
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| 2007 Chevrolet Tahoe LTZ 5.3L Air bag D de |
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| 2004 GMC Yukon SLE 5.3L Accessories VIN: 1GKEK13T94 See if you guys can help me with this one the problem I'm having is with the driver door modual this is what happens with the truck on the run position all windows work and mirrors the minute I start the truck I lose the driver door windows and mirrors but all... |
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| 2004 GMC Envoy SLE 4.2L Cylinder Block VIN: 1GKDS13S54 Replacing cylinder head, 5 head bolts broke off during disassmbley. 3 came right out, one had to drill out, 5th one I have to heli-coil. Mitchell states thread is M11 X 2.0, cannot locate heli-coil anywhere for this thread pitch. Does anybody known of a suppli... |
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| 1995 Oldsmobile Aurora 4.0L MIL Lamp on VIN: 1G3GR62C3S good day all. i have this olds, she had a stuck open EGR. that was the only code stored. replaced EGR now i have a code 80 tps/idle learn incomplete. i have attempted to clear code several times, unhooked battery, connect leads together. and run relearn also s... Trouble codes: 80 (tps/idle relearn incomplete) |
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| 2000 Saturn SL1 1.9L cat unready VIN: 1G8ZG5282Y Hello, This Saturn at idle is at -30 stft -40 ltft, Looked everywhere for a vacuum leak, sprayed a few times while monitoring the front 02 with no luck. replace the fuel injectors witch made it slightly worst. map reads 1.20v at 700 rpm. at 2000 rpm the stft g... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2002 Buick Rendezvous CX 3.4L trans fail safe VIN: 3G5DB03E72 Ok, there have been several good replies on this, most pointed at the alternator. There is a lot of confusion on the operation of this charging system. This car does have ecm control of the field circuit. The L terminal receives a 5 volt signal from the ecm... Trouble codes: P0620, P0560. |
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| 1996 Chevrolet S10 LS 2.2L Misfire VIN: 1GCCS1940T We had misfire and intake popping. Intermittent, 8 calls to Identifix, they recommended 02 sensor, then another, then 02 harness wire, then more, more, more, 10 hours of time, on my own Thanks for your help and sorry for the poor posting, I thought I could up... |
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| 1999 Chevrolet Silverado 1500 5.3L Unknown VIN: 1GCEK19T0X Most said that green is for holding purposes. Insert pump onto drum and air check this way. Use tranny fluid or stp mixed with red lube to thin down. There is never a 100% guarantee . Air check with shaft up. thanks everyone |
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| 2011 Chevrolet Silverado 2500 HD LTZ 6.6L MIL Lamp on VIN: 1GC1CYC80B thanks to those who took time to help. because of time the owner decided to go to dealer. thanks matthew [...] found tsb and sent it with him to dealer. what I was told they had the truck for a week and in the end said they "manually" forced a regen on filter , th... Trouble codes: P2463 (DPF regeneration). |
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