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Professional Automotive Repair Technical Discussions for February 11, 2011 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1997 Cadillac Eldorado 4.6L Misfire, MIL Lamp on VIN: 1G6EL12Y4V Vehicle came in with Check Engine light on, with original code po301-cylinder 1 misfire detected. Pulled plugs and found OE Plugs still in vehicle at almost 100k miles on them. Vehicle was not missing at this time. Replaced all 8 plugs with new OE plugs, clear... Trouble codes: P0300 |
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| 1998 Cadillac Seville STS 4.6L Instrument panel VIN: 1G6KY5498W Vehicle came in with no crank. Tested battery and found battery defective. Replaced battery and released the vehicle. Came-back two days later with the same symptom. Tested battery and found battery drained. Rechaged battery and found no crank condition in the... |
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| 1998 Chevrolet K1500 Silverado 5.0L No Start, Cuts out, Stall VIN: IGTEK14M7W Vehicle was driven in. Plow truck, had gotten stuck, burned out reverse trying to get it out. Did not test drive prior to trans repair, but did drive into shop.(Would drive forward in rev or No apparent running issues. Rebuild trans and install. Truck will not... |
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| 2001 Chevrolet S10 2.2L No Start VIN: 1GCC514571 this vehicle came in with spark plugs fuel fouled.change plug at no avail.compression appears ok.fuel pump is supplying 60psi while cranking.computer has two codes po172/po631 upon checking it out all inputs look ok except cal. load% it is 99% this sounds wron... Trouble codes: P0172, P0631 |
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| 2003 Chevrolet Malibu 3.1L No Start VIN: 1G1ND52J83 This ones got me pulling my hair out pleaase help car came in on the hook dead battery customer said it wouldnt start pushed in the shop and charged battery and went to start and noticed the theft light was on vehicle cranks and runs for a second and dies acte... Trouble codes: B2957 (Security system circuit low), B3031 (Security system in learn mode), U2001 (Invalid i.p.c. Transmitted s.p.i. Data), U0200, U1000 (Loss of class 2 serial data) |
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| 2007 Chevrolet Express 2500 4.8L Brakes VIN: 1GCGG25V97 Truck came in with low pedel felt like lost half of master ! Replaced Master blead system over and over No change Brake pads good slides all moving fine Truck has hydo booster off Power steering ! All sugestions welcome thanks ! |
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| 1997 GMC K1500 Sierra SLE 5.7L Misfire VIN: 2GTEK19R4V Truck misfires on cylinders 5 and 7. My guy replaced the lower intake manifold gaskest because they were leaking coolant. after repair the truck will misfire all the time so problem gets shifted to me. Since it wasn't missing like this I figure it was somethin... |
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| 2000 GMC Jimmy SLT 4.3L Engine VIN: 1GKDT13WXY Hey guys, I have my boss's Jimmy here with the 4.3 "W" engine. It has a heavy tick/light knock that was very apparent toward the back of the enggine underneath the truck. I looked at the flexplate and saw some suspicous rings around where the bolts went throug... |
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| 2006 GMC Yukon Denali 6.0L rear heat VIN: 1GKEK63U56 hey guys i need help, please anybody have similar situation or repair this cane of problem tanks. |
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| 1962 Oldsmobile Starfire 6.5L a/c VIN: 626CO3654A Help, I need a vacuum diagram for the HVAC system for this Starfire. It came with factory A/C .. my fax number is [...], Thanks for the help. |
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| 1999 Saturn SL1 1.9L Misfire VIN: 1G8ZF5284X Hi Folks, This Saturn is giving me quite a headache. Customer came in for a tune up and oil. Check engine light was on. I replaced the spark plugs and wires, air filter, spray cleaned throttle body. Started car and still noticed a misfire. CEL said Cyl #1 misf... |
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| 2002 Saturn L200 2.2L No Power Steeering VIN: 1G8JU54F22 Power steering stops working at times mostly at cold start up. We have replaced pump and pressure line and also bled steering per manufacturer recommendations still same problem. When problem occurs it is like the pump has no line pressure. Anyone ever run int... |
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| 2002 Saturn Vue 3.0L Poor Idle Quality, Misfire, MIL Lamp on I will be traveling 1100 miles to check this trucks' problems in the next 30 days. The shop doing the current repairs has used only GM OEM service parts. The misfire does diminish if the idle is raised from the base, 650? to 750 or when the PCM raises it for t... Trouble codes: 301 (misfire), 303 (misfire), 305 (misfire) |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2002 Chevrolet Silverado 2500 HD 6.6L MIL Lamp on VIN: 1GCHK23122 Thank you to all who have replied. I have yet to get this truck back into my hands to test out what information has been given to me. This is a regular customer but he has had a lot on his plate lately so I'll let him slide for now. I'll open another help requ... Trouble codes: P0101 (MAF Range performance). |
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| 2003 Chevrolet Silverado 2500 HD 6.0L Stall VIN: 1GCHC24U83 I HAVE NOT YET BEEN ABLE TO FIX THIS ONE YET. I HAVE CHANGED THE THROTAL BODY, THE PEDAL SENSOR, THE THROTAL MODUAL, INSPECTED ALL WIREING AND PLUGINS CONNECTED TO ALL OF THESE. JUST YESTERDAY I FOUND A NEW GLITCH. IF YOU PUSH THE ACCELERATOR TO THE RIGHT WITH... Trouble codes: P1125, P2120. |
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| 2003 Chevrolet Silverado 2500 HD 6.0L Poor Idle Quality, MIL Lamp on VIN: 1GCHK23U03 I found out that I could set the P1516 code with key on, engine off just by pushing on the accelerator pedal and watching the APP sensor and TP sensor %. That meant less time spent on the road testing part of it. The code always set at 25% opening. When the co... Trouble codes: P1516 (Predicted vs Actual throttle position correlation error). |
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| 2006 Chevrolet Malibu LT 2.2L cooling system VIN: 1G1ZT51F86 Thanks for the help guys. The customer has yet to return with the vehicle. The cap is new as well as the coolant bottle. We are going to flow test the radiator and add leak dye to it once it returns |
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| 2001 GMC Jimmy SLE 4.3L Transfer Cas VIN: 1GKDT13W01 Sorry about the time it took to get back to everyone. I replaced the transfercase and the 2wd works proper now but the 4x4 switch lights still flash when it is in 4 wheel drive. The 4 hi and low works other then the flashing lights. Customer decided not to go ... |
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| 2007 GMC Sierra 1500 SLE 5.3L Door Locks VIN: 2GTEC19J57 I want to thank every body that shared informtion to fix the problem on this gmc truck. We checked the wires as jeff recommended, no problem detected , also removed the battery from the keyless entry remote, as gary said, situation still the same after that. ... |
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| 2002 Pontiac Grand Prix GT 3.8L pump VIN: 1G2WP12K52 After all this time I spent on this, I put a delco pump on,bleed system and wow! it is fixed. Thaks for everyones help. Ryan |
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| 2006 Pontiac G6 GTP 3.9L Cuts out VIN: 1G2ZM15186 A big thank you to all who responded. After cleaning the throttle body, it seems to be running fine. The customer picked it up two days ago and hasn't had any trouble. he is aware that if it acts up again, we may need to change the TB Assembly. Thanks agai... Trouble codes: P2135 (Throttle Position Sensor Ou tof Range). |
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| 2000 Saturn SL1 1.9L monitors VIN: 1G8ZH5283Y Sorry this took so long to get back to everyone. As I stated before I was begging for help on anothers behalf. What was determined was the PCM was at fault but the customer declined to repair the vehicle. Thank you so much for your responses and help not just ... |
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| 2002 Saturn Vue 2.2L Misfire, MIL Lamp on VIN: 5GZCZ23D52 Thanks for all your suggestions, I did add the lucas back in & drove the vehicle for the next couple of days, lifter noise did not go away this time but the engine did/does run smooth otherwise. We removed the valve cover to check the lifters & found that 1 o... Trouble codes: P0304. |
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