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Professional Automotive Repair Technical Discussions for November 11, 2010 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1998 Buick Regal LS 3.8L MIL Lamp on VIN: 2G4WB52K6W The code has set twice after about 40 miles of driving, the freeze frame data is as follows: -engine rpm-950--engine load-4%--coolant temp-187 -st trim%- -3...st trim-124 -lt trim%- -18..lt trim-104 -map "hg-10.1--mph-0---tps%-0---baro-30.5 the freeze frame da... Trouble codes: P0507 (Idle control system rpm too high) |
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| 2007 Buick Rendezvous CX 3.5L Windshield Wipers VIN: 3G5DA03E37 Vehicle arrived at shop with no windshield wiper or rear wiper operation. All other accessories on multi-function switch are working.[i.e; cruise control, turn signals, flash to pass, high/low beams]. Checked center console fuse block: no power to wiper fuse. ... |
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| 1990 Cadillac DeVille 4.5L Excessive Emissions VIN: 1G6CD5338L also at 25mph fails at 1001 nox,hc @22,co @.00,co2 @14.6,O2 @.7.with egr disconnected nox will go up to 2500-3000.egr is working.failed cat test so replaced cat with no change to nox.o2 at idle switching from .2-.7mv.after repairs i reset fuel trim.intergator ... |
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| 1975 Chevrolet Corvette Stingray 5.7L power steering VIN: 1237X6S407 The power steering is not working in this bad boy, fluid and belts are ok. Also pump is turning :) Suggestions to diagnose as this powers steering is not a conventional system as it has a lower control vale/rod assembly to the pitman arm. |
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| 1997 Chevrolet K2500 Cheyenne 5.7L abs module VIN: 1GCGK24R0V I have a 97 Chevy k2500 truck with a low pedal. The customer put a used ABS module,new front calipers,pads, hoses,and master cyl. We tried 2 more used ABS units and bleed multiple times still with the same result. I think that all of these used units are bad b... |
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| 1997 Chevrolet Blazer 4.3L Poor Idle Quality, Stall VIN: 1GNDT13WV2 Hello Techs, this engine will almost stall intermittently when put into drive or reverse or when coming to a stop at times,has somewhat of a rough idle also,have checked and smoked checked for Vac. leaks,checked cranks sensor pattern,checked egr for carbon, ch... |
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| 2000 Chevrolet Silverado 1500 4.3L Hesitation, Surge, Misfire, MIL Lamp on VIN: 1GCEC14W1Y anyhelp would be highly helpful Trouble codes: 1351 (high voltage coil 1 and 4), P0300 |
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| 2003 Chevrolet Malibu 3.1L transmission VIN: 1G1ND52J73 Customer came in stating that his car had a "hard shift" when in reverse or forward..I have tested and no codes were present..The customer has had the car for 10000 miles worth of driving, and has no record that the fluid has ever been changed..Checked fluid l... |
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| 2003 Chevrolet Silverado 2500 HD 6.6L No Start VIN: 1GCHC23133 Hi all, this truck came in for abs light on, they drove it in. Checked for codes, found front wheel sensor bad, had to wait for customer to ok repair so i backed it out of the shop and parked it. Went to put it in shop that night,would not start, cranks fine s... |
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| 2004 Chevrolet Silverado 2500 HD 6.0L Trans Temp VIN: 1GCHC24404 Came in and after driving a while would come up in display trans overtemp, installed reman trans but would still do it, replaced computor and installed external cooler and bypassed radiator but still to no avail still comes up after driving for a while indicat... |
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| 2005 Chevrolet Colorado Sport 3.5L Misfire, MIL Lamp on VIN: 1GCDT13655 This truck got a p0305 code i have switched coil put new plug my no 5 plug is always black like there is too much fuel check for vacuum leak but always the same p0305.i hear the injector at all cylinder and they have a good clincking sound could not do a balan... Trouble codes: P0305 (Misfire cyl 5) |
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| 2003 Hummer H2 6.0L rear air susp. VIN: 5GRGN23U73 hello hummer tech's thanks in advance for help this vehicle is driving us crazy. if parked on level vihicle will stay up indefinetly. If parked on uneven ground over vehicle goes down in 30 minutes. |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2004 Chevrolet Impala 3.8L 1st gear start VIN: 2G1WF55K84 The trans still has some concerns, but for now I will close this request. The opinions were split 50/50 to teardown & look for sticky valves or try snake oil. (snake oil is not in my toolbox). I will continue to put miles on car and change fluid often & see w... |
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| 2007 Chevrolet HHR LS 2.2L steering After rechecking this vehicle it was determined the column was the source of the noise. Replaced the column and all is ok. |
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| 2007 Chevrolet C4500 Kodiak C4E042 6.6L fan clutch VIN: 1GBE4V1917 thanks for the help sent truck to dealer for computer replacement under warranty |
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| 2001 Pontiac Grand Am GT 3.4L Hesitation Thank you all for the info. Tim i tried what you offered and still nothing. I Ended up doing a running compression test and the results came up at almost 110psi. took the cat out car ran great. Replaced the Converter and all is well. Thanks for your time every... |
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