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Professional Automotive Repair Technical Discussions for October 20, 2006 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1993 Buick Park Avenue 3.8L heater core VIN: 1G4CW53L6P Someone please help me. This car is driving me crazy. I have replaced the heater core 6 times in the last 6 months. They keep leaking from the seams. I dont think that electrolysis would do this normally that would make a pin hole. However I have flushed the s... |
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| 1996 Chevrolet Lumina LS 3.1L Misfire VIN: 2G1WN52M8T vehicle has returned to our shop 3 times in two months with # 2 cyl misfire , the problem is always the spark plug. something is making the plug misfire. the plug is always clean and looks normal,no oil or buildup of any kind. Trouble codes: P0300 |
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| 1996 Chevrolet Tahoe LS 5.7L fuel lines VIN: 1GNEK13R0T This is probably not a *true* tech line question but need the "years" of experence found here. In replacing the fuel tank in this Tahoe I mangled the fuel lines to the fuel tank --the return an the supply lines . In honestly just didn't realise they were ther... |
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| 2002 Chevrolet Trailblazer LS 4.2L suspension VIN: 1GNEC13T81 This trailblazer makes a creaking/squeaking noise when the brakes are applied at a low speed and the front end dips down,right when it stops completely.We can make the noise by rolling slowly and stabbing the brake pedal which causes the front end to dip and s... |
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| 2002 GMC Envoy SLE 4.2L No Start, electrical VIN: 1GKDT13S32 Hellooooo Techs.this envoy originally came in for passenger side door lock inop,pass side climate control stays cold. door panel was removed & door lock actuator wires tested for signal. none their both grey & tan wires grounded all the time. looking at the sc... |
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| 2005 Pontiac Grand Am SE 3.4L Dask lights & starter VIN: 1G2NE52E45 Got a 2005 Grand Am in that the people said they had to jump to start the last few times they drove it. I went to start it and NOTHING happened. I did a battery test and found the battery to be good. I pulled the starter off and tested it in the bench and it s... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1995 Buick LeSabre Custom 3.8L charge system VIN: 1G4HP52L7S First of all, deepest thanks for all your help. As many of you suspected the vehicle had a faulty p.c.m. The output wire from the pcm to the L terminal at the alternator was not powered. I checked all the powers and grounds into the computer and all were good.... |
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| 1998 Cadillac DeVille d'Elegance 4.6L Stall VIN: 1G6KE54Y1W Sorry for the long time to close. I found the source of the noise while acellerating, there is a chain inside the transmission and it is believed that the chain is causing the noise on acelleration. I drove vehicle for week while client was on vacation, never ... Trouble codes: P1599. |
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| 1978 Chevrolet Corvette 5.7L inner axle stub VIN: 1Z87C8S402 once again iatn comes through! john ,russel and chip all had aftermarket places to purchase new replacement parts that are not pieced together.i called 2 of them to confirm that fact. in wisconsin we are entering the storage season for old cars and this custom... |
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| 1989 Chevrolet Corvette 5.7L Disc Brake system VIN: 1GIYY3181K First ofrf let me thank all those that have replied. All the suggestions were very helpfull in the quest to discover the problem. We eventually narrowed it down to the abs Hydraulic assembly. Turns out the vehicle had been sitting in a garage for almost 2 year... |
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| 1990 Chevrolet Celebrity 3.1L Hesitation, Cuts out, Stall Well, guys a lot of you hit it right off, after talking to the other techs, they replace map,crank sensor, tps, ecm, fuel pump/filter. I straight to the injectors, checking the connector behind the plennem, I got 6.1 for bank 1 and 2.4 for bank 2, taking the p... |
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| 1998 Chevrolet Astro 4.3L Stall VIN: 1GNEL19WXW The fuel pump fixed this van. I put an original equipment pump module in and road tested it. I let it run for a good long time to be sure. I don't know what caused this pump to fail a second time but did ask the customer to try not running it super low on gas.... Trouble codes: P0172, P0175. |
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| 1999 Chevrolet Cavalier Z24 2.4L suspension VIN: 1G1JF12T6X Thanks for all the input, almost all the replies led me to the drive axles. I replaced both axles and the problem has gone away. Because the vehicle has been lowered I informed the customer the problem may re occur in the future. At this time the vehicle is wo... |
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| 2000 Chevrolet Prizm 1.8L heater blower VIN: 1Y1SK5282Y First of all i want to thank everyone that replied to my post. We gave the car back to the coustomer and told him that the blower on this car will run when the key is on, or the car is started in the off position. |
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| 2000 Chevrolet Venture 3.4L MIL Lamp on VIN: 1GNDU03E1Y Thanks to all who replied,esp. Andy from North Carolina who was kind enough to email me with diag. flow chart.Well after manualy activating all valves and finding they were all ok and finding that no matter what I unplugged the scan tool would not activate eva... Trouble codes: P0446 (evap sys.vent control malfunction). |
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| 2001 Chevrolet Silverado 2500 HD 6.6L Misfire VIN: 1GCHK23111 thanks to all that reported back on this problem, by using the temp. of the exhaust ports i pinpointed which injectors were not firing correctly and replaced two injectors and that took care of the problem. thanks for all the help. |
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| 2000 GMC K3500 Sierra SLT 5.7L Excessive Emissions, Poor Fuel Economy VIN: 1GTHK34R6Y The truck has been gone for about 4 weeks now relaced gas cap like many of you said. Thanks to all of you who responding iatn is always great thank you |
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| 1999 Oldsmobile Cutlass GL 3.1L Misfire VIN: 1G3NB52JDX First of all I give my sincere aprreciation to all the techs who took their valuable time to help me on this vehicle. There were many good suggestions involving, injectors, injector wiring and vacuum leaks. We ended up removing the intake manifold to check for... Trouble codes: P0306 (misfire 6 cylinder). |
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| 2001 Pontiac Sunfire SE 2.2L fuel injection sistem inop VIN: 4317416626 I want to thank to paul neerhof, chase millar bice,mark [...],carlos fernandez,and all who took their time to help me. thanks a lot. the fix electrical part for ignition key.javier |
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