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Prev Professional Automotive Repair Technical Discussions for January 2, 2009
International Automotive Technicians' Network (iATN) - Members Only
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
1995 Cadillac DeVille 4.9L No Start VIN: 1G6KD52B65
Hello, I've been working on the Cadi for going on 4 weeks. This car came to me without any maintenance at all. Still oem wires, o2's plugs, you get it. Cold start problem, low fuel pressure every morning, once the car is started no problems. If you cycle the s...
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1967 Chevrolet k 10 5.7L altenator VIN: NO VIN
still not charging. any suggestions? has power and grounds
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1995 Chevrolet Blazer 4.3L No Start
I have this truck with no injector pulse. Ok before all of you answer it is NOT a fuel pressure problem OR the injector or connector.I am testing the pulse at the connector(engine side) with the injector umplugged. If you let the vehicle sit for several hours ...
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1997 Chevrolet C1500 4.3L Hesitation, Cuts out VIN: 1GCEC14W8V
this truck cuts out just off idle on accel when the vehicle is cold. This happens even if the engine is at operating temp. When you go to accelerate the engine it will just cut out and backfire, let go of the throttle and it will idle perfectly. The truck star... Trouble codes: P0140
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2000 Chevrolet Cavalier 2.4L radio VIN: 1G1JF52TOY
just bought radio from salvage yard, has code i called dealer they said to bring it in and they have to call gm i was wondering if anyone has that # or procedure
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2003 Chevrolet Silverado 2500 HD 6.6L No Start VIN: 1GCHC23113
After being put through a hard 90 mile trip, (at 90 MPH) this duramax will now only start with a large slug of carb cleaner (B12). Once it starts, it runs great, sounds great. If killed for an instance it will not start again without help no matter what the te...
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2004 Chevrolet Trailblazer LS 4.2L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Poor Fuel Economy, MIL Lamp on VIN: 1GNDT13S14
hello fellow techs need help have a 2004 trailblazer with a 0068,0172,0128 code followed diag. tree from alldata with no conclusive answer to the problems. did unplug map sensor seemed to run better but not 100% ect reads correctly rpms do fluctuate no power,s... Trouble codes: P0068 (map/maf-throttle position airflow correlation), P0128 (coolant thermostat), P0172 (fuel system too rich bank 1)
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1998 Pontiac Bonneville SE 3.8L monitors VIN: 1G2HX52K5W
This car ran the o2 heater and o2 monitors but won't run catalyst or evap or egr monitors. It needs to run them to pass nys inspection. no codes were found driven aproximately 150 miles all conditions. Help Please
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Fixes & Summaries for GM
Fix/Summary Answers
2000 Buick Century Custom 3.1L blower vents VIN: 2G4WS52JOY
Well, all you guys figured blocked up heater core, and thats where I ended up going as well. I pulled the lower covers of, and theres the heater core. no air coming out. I pulled the heater core , no trash, but the air flow without it was much stronger. I stuc...
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1984 Chevrolet Corvette 5.7L battery VIN: 1G1AY0787E
thank you to every body that helped the fix was a short i the cluster replased cluster and it was fixed
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1995 Chevrolet Astro CL 4.3L hard starting VIN: 1GNEL19W6S
Sorry it took so long to get back to you all. We had a major ice storm,no power for days,state of emergency,artic air & record snow. As soon as I read Craigs post I saw I was looking at the tune valve wiring not the injector. The next morning I keep a close lo...
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1996 Chevrolet Camaro 3.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: 2G1FP22KXV
Found camshaft reground incorrectly that has thrown timing off.Thanks to all who replied. Trouble codes: P0300.
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2001 Chevrolet Prizm 1.8L Hesitation, Cuts out VIN: 1Y1SK52861
Thanks for all the replies. Removed the MAF sensor, and visually lookied at it, as the scanner did not detect a problem, and data was within range. Found gunk on the leads, cleaned with cleaner re-installed, and problem is gone. THANK YOU TO ALL WHO RE...
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2002 Chevrolet Avalanche 1500 5.3L Oil Pressure VIN: 3GNEK13T52
Thank you for all of your responses. After discussing each case that you sent me with the customer, they decided to live with it the way it is. As some of you replied about the maximum oil pressure, we are never seeing pressure above 80 psi which would then be...
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2004 Chevrolet Tahoe LS 5.3L tccm VIN: 1GNEK13T24
I SENT THE TRUCK TO THE DEALER TO HAVE THE MODULE REPRGRAMMED.ABOUT AN HOUR LATER THEY CALLED AND HAD ASKED WHAT MI ORIGINAL PROBLEM WAS,TO THAT I TOLD NO COMMUNICATION WITH MODULE.AFTER SEVERAL HOURS THEY CALLED BACK AND SAID THEY CAN NOT REPRGRAM BECAUSE OF ...
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2001 GMC w3500 350CID core VIN: 4KBB4B1R21
yes a member had the info i needed to install this heater core ,it went well with the proper information thanks to the 3 iatn members and happy new year joe
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1996 Pontiac Firebird 3.8L Poor Idle Quality, Hesitation, Misfire, Poor Fuel Economy VIN: 2G2SF22KIT
thanks to all who offerd me assistance on this one, it was greatly apprecited.it seems that steve [...] may have nailed this one for me. i took the coil bracket off,cleaned all the mounting points of corrosion ran a seperate ground to the bracket and the car h...
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1999 Pontiac Grand Prix GT 3.8L Cuts out, Stall VIN: 1G2WP12K8X
THANK YOU FOR ALL HELP THREW THE REMAN SENSOR AWAY AND WENT WITH A BRAND NEW SENSOR AND FIXED THE CAR
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1998 Saturn SL1 1.9L No Start, Poor Idle Quality, Hesitation, Cuts out, Stall VIN: 1G8ZH528XW
Many members responded to check the coolant sensor, they were correct. Road tested vehicle while monitoring cts + found no responce just a cold temperature reading, but the engine was at operting temperature. Removed cts + found cracked bulb, replaced now ca...
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