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Professional Automotive Repair Technical Discussions for April 21, 2010 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1996 Chevrolet Tahoe LT 5.7L starter VIN: 1GNEK13R6T Customer had vehicle towed in due to a no start no crank issue...when turning key to crank,has no power at starter...relay is good but all contact points on ignition switch is always hot(constant power)any help or suggestions would be appreciated.thank you |
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| 1997 Chevrolet Tahoe 5.7L wheels VIN: 1GNEK13R1V Vehicle is vibrating at highway speeds from aprox. 50 to 70mph. Shifting into neutral does not make a diffeence. Swerving left or right no change. Vehicle exhibits vibration worse with empty car trailer behind it. Feels just like tire balance but all wheel/tir... |
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| 2001 Chevrolet Express 2500 5.7L HVAC control VIN: 1GCHG35R71 Vehicle presented for hissing noise when mode selector for HVAC system in off position. Removed control head,no broken lines,all connections tight. Removed vacum harness from selector and used jumper to verify all doors operate. Blocking the feed line and no n... |
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| 2004 Chevrolet Silverado 1500 LS 5.3L unknoun VIN: 2GCEC13T84 clunking noise when breking to stop in the rear end , other than that , vehiculo brakes ok.., i, inspect the brakes lock god , nothing is loose in the suspention.. please help on this one..(the clunking is not hard)... |
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| 1993 GMC C1500 Sierra SLE 4.3L stalls with a/c on VIN: 1GTDC14Z0P temp. has warmed up now veh. is stalling again. didn't stall during winter. No codes |
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| 2004 GMC Sierra 2500 HD 6.6L MIL Lamp on, Will not accelerate VIN: 1GTHK292X4 Engine will start and Idle. No power and will not accerate off Idle. Code scan shows only P207, Cyl. #7 circuit problem. Using Modis trouble shooter, we find test proceedure for this code suggests testing for grounds and/or opens from the FICM (Fuel Injector C... Trouble codes: P0207 (Cyl. 7 inj. Circuirt problem) |
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| 1997 Saturn SL2 1.9L Balancer VIN: 1G8ZK5270V Welcome to our bizarre world...This saturn was towed in with a no start cranks ok. I floored it and it sputtered to life. It ran very rough and we found two wires w/ no spark. I ordered a coil and sent one of the guys to put it on. We couldn't remember which o... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1996 Chevrolet Blazer 4.3L Excessive Emissions, Poor Idle Quality, Surge VIN: 1GNDT13W3T Thank every one for the help. i have made signifacant improvement in this driveablity issues with this Blazer. several Differnt issues replaced fuel preasure reg solved leak down and stoppped aw fuel leak in intake. Repaired exhaust leak not too far from o2 s... Trouble codes: P0102 (p0147-), P0147 (p0155-), P0155 (p0300-), P0300 (p0440-), P0440 (testing and results). |
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| 1998 Chevrolet Blazer LS 4.3L Cooling Systems VIN: 1GNCT18WOW i found all of the replies had useful information on pulling the engine without pulling the trans, however i went for the sure thing, i knew the intake was leaking coolant at the rear corners so i removed intake and replaced gaskets,somehow coolant was enterin... |
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| 2007 Chevrolet Cobalt LT 2.2L MIL Lamp on VIN: 1G1AL15F17 Well i believe this one is fixed. Customer delayed bringing vehicle in to me after the light came on this last time. Checking it again thinking that an o2 sensor replacement would be next, get the car in to find out that this code has not came back, that they ... Trouble codes: P1174 (fuel trim cylinder balance). |
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| 2006 GMC Yukon XL 1500 SL 5.3L Hesitation, Stall, MIL Lamp on VIN: 3GKFK16Z22 Sorry Guys When I saw the 45psi fuel pressure I got tunnel vision.My gage is bad.New one on the way.The problem was a pluged Cat. on right bank. Jim |
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| 1998 Pontiac Sunfire SE 2.2L belt tensioner VIN: 1G2JB1248W Put jack under front engine cradle, removed two motor mount bolts near valve cover, lowered the engine. The tensioner bolt would then barely come out, but got it. Reassembled with new tensioner. removed alt and set aside, removed water pump from the top, was p... |
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| 1996 Saturn SC2 1.9L cooling fan/fan clutch VIN: 1G8ZF1592R This vehicle is owned by a jiffy lube employee who would rather buy a new car than pay to have it repaired. After having delt with the Saturns before, I can only surmise that the ECTS or ECTS wire harness is to blame for the cooling fan not operating when it s... |
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| 2003 Saturn L300 3.0L won't accellerate VIN: 1G8JW54R33 Thanks for quality responses Brian,Tim and John, After towing this car back from the dealer, who's summary was the new BCM was corrupted and would have to be replaced due to a programming issue,I decided to investigate the possibility of deprogramming the BC... Trouble codes: U2106. |
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