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Professional Automotive Repair Technical Discussions for July 2, 2013 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2001 Chevrolet Express 3500 5.7L brakes VIN: 1GAHG39R41 van came in with brake pedal hard first 2 or 3 times, then it is fine for the rest of the day. replaced booster,same thing,replaced power steering pump, same thing, any idea's on this one? the power steering works fine all the time. |
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| 2005 Chevrolet Silverado 3500 6.6L Hesitation, Cuts out, Stall, MIL Lamp on VIN: 1GCHK33275 Wires have been tested from cam sensor to PCM all ok, the connectors have been inspected for loose or damaged pins. The PCM has been replaced with a GM unite. The cam sensor has been replaced. With the engine running cam sensor is present but on watching the m... Trouble codes: P0016 (Crank and cam variation) |
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| 2006 Chevrolet Cobalt LT 2.2L Surge, MIL Lamp on VIN: 1G1AL55F16 hi has intermittent problem when happens dash lights flick on and off, shifts erratic when driving,loses power steering. I have not drove when working bad when in shop it malfunctioned for about a minute by the time I got scan tool connected it stopped. after ... Trouble codes: P0700, U0073 (Can communication) |
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| 2012 Chevrolet Express 3500 LT 6.0L Hesitation, MIL Lamp on VIN: 1GAZG1FGXC Van came into shop with problem of dying out 3 times up at 8k foot level at Mauna Kea. Pulled codes P0332, P0336 P0341. Van starts fine, idles fine, but as soon as you put it in gear and under load it hesitates. More gas you try to feed the worse it gets. You... Trouble codes: P0332 (Knock sensor 2 signal low voltage), P0336 (Ckp sensor a 18/24x signal performance), P0341 (Cmp sensor circuit signal performance) |
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| 2007 GMC Sierra 2500 HD Classic SL 6.6L No Start This vehicle was brought to me as a crank no start condition. After diagnosing the problem I found out that the actual fuel pressure pid while cranking was only 300 psi while the desire pid was 6500 psi. I made sure the fuel system primed up,checked for leaks ... Trouble codes: B0414, B1025 |
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| 1988 Pontiac Grand Prix LE 2.8L engine VIN: 162WJ14W1J ok, this unit runs ok untill hot,,190-200 shuts down/ will run with a little help on gas in air cleaner needing some input on this one, back log after a 30 day spritual retreat,,,humbly bob [...] kinda of thinking o2 heat sensore dropping volage but have 5v... |
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| 2000 Pontiac Sunfire SE 2.2L head lights/day time running lights VIN: 1G2JB5245Y I have checked connector c101 and all the splices related to the daytime running lights and the low beams. the high beams do work. what could i be missing. any help would be great. |
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| 2006 Pontiac Solstice 2.4L Engine VIN: 1G2MB33B26 Did a water pump replacement on this Soltice. Coolant was leaking from it quite profusely, and had a whine type noise in that area. We bought the tool that holds the balance shaft gear in place, and purchased a Delco pump from the local GM dealership. Replacem... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2002 Cadillac DeVille DTS 4.6L ride control VIN: 1G6KF57902 Hello,hope all is well.I had 3 replies to my post,i couldn't use the strut master kits because as mentioned in my post i had already purchased the monroe kit.Andrew from ontario suggested finding the specs for the sensors in Alldata or Mitchell,but for the lif... |
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| 2000 Chevrolet Cavalier 2.2L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1G1JC1248Y First thing is to thank all the guys for your help. Despite low compression numbers, customer installed aftermarket wrong sensors, exhaust leaks everywhere, a lean code (171) and black plugs we decided to follow a few guys that said "upstream O2". Well after 1... Trouble codes: P0171 (System lean). |
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| 2002 Chevrolet Blazer LS 4.3L engine VIN: 1GNDT13W02 this veh is a distributor cap eating animal but fuel pressure was the original problem[30 psi]after pump replace ment it got a hard start long crank n it was like all atn members said,fuel regulator had a dribble of a leak.replace and all is good.thanks agai ... |
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| 2007 Chevrolet Avalanche LTZ 5.3L Poor Idle Quality VIN: 3GNEC12007 thanks everybody for the help.The answer came from identifix throttle need to be relearned.Whith scanner look for module set-up,enter then look for idle relearn. Trouble codes: P0121. |
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| 2007 Chevrolet Silverado 2500 HD LT 6.0L ABS module VIN: 1GCHC24K87 Thanks for all of the input. This was a strange one. I had the scan tool hooked up and still had no communication and the lights were still on after many hours looking at all of the possibilities. I looked at a circuit printout I found online and noticed the t... |
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