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Prev Professional Automotive Repair Technical Discussions for August 10, 2007
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
1998 Cadillac DeVille 4.6L MIL Lamp on VIN: 1G6KD54Y4W
Evening gentlemen and ladies. I have an 1998 cadillac deville that keeps throwing a Maf sensor code (P0101). The problem is how inconsistant the problem occurs, approximitly once in fifty miles. I have looked at freeze frame and tried to duplicate the problem,... Trouble codes: P0101 (maf out of range)
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1997 Chevrolet K1500 5.0L Misfire VIN: 1GCEK14M1V
Truck came in running rough with CEL flashing. Missfire data indicated missfires on cylinder 7 only. Checked for vacuum leak with propane, none found. Checked resistance of plug wire on affected cylinder 1000 ohms. Swapped plugs on cylinders 5 and 7, miss stay... Trouble codes: P0300 (Random or multiple cylinder missfire)
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1998 Chevrolet C1500 Cheyenne 4.3L Hesitation, Cuts out, MIL Lamp on VIN: 1GCEC14WOW
this problem started suddenly i was operating the vehicle at the time it occured. the truck was running great stopped at the 7/11 came out and the vehicle had no power under a load. in park it will accelerate fine once in gear or if you turn the steering it cu... Trouble codes: P1345, U1041, U1192
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1999 Chevrolet S10 2.2L MIL Lamp on VIN: 1GCCS1447X
This truck Came in with a p0452 so i watched the sensor while on a test drive and it would read vacuum in the tank when purge was active. The longer i drove the vacuum went away even though the purge was still active. And it eventuall rose to the point it had ... Trouble codes: P0452
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2004 Chevrolet Silverado 1500 5.3L system pressure VIN: 2GCEK19T54
Hi everyone, This is my truck. Under a warranty, but I would like some input when I bring it to the dealer. Start the vehicle up, put on the air, warm, 70lbs on the low side, 475lbs on the high side. Shut down the a/c, put it back on, two or three times, then...
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1996 Oldsmobile 98 Regency Elite 3.8L cruise control VIN: 1G3CX52KXT
the car will disengage the cruise when taking a sweeping left at high way speeds. we did this with the traction control of and on. no diff. the car will randomly display the traction system active in the display. at speed going straight. the system will dsngag...
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2000 Pontiac Grand Am SE 3.4L ignition switch VIN: 1G2NG52E2Y
I snapped the plastic cover off over the ignition switch and the took off the trim around the radio to change the flasher unit. After i put the flasher in and the plastic back together and the that went fairly easy, the key would not turn. I messed with the ke...
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2002 Pontiac Grand Am SE 3.4L MIL Lamp on
Hey there ladies and gents, I have a grand am here that has an "ERLS" fuse blown and causing these codes, we identified the rubbed thru harness leading to the O2 sensor causing the short so the vehicle is fixed. My question is does anyone know what "ERLS" is t... Trouble codes: P0141, P0443, P0446
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2002 Saturn L200 2.2L ignition lock and power windows VIN: 1G8JU54F22
car came in because the key would not turn back all the way to pull out. if you slammed the shifter into park, the lock would turn back to get the key out. after talking with the local saturn dealer, we replaced the lock cylinder housing and relearned the pass...
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Fixes & Summaries for GM
Fix/Summary Answers
1997 Buick Park Avenue Ultra 3.8L Stall VIN: 1G4CU5216V
LATE YSTERDAY WHEN WE WERE ABOUT TO TRY ANOTHER TEST RIDE WE HAD ALL THE EQUIPMENT HOOKED UP AND THE OLD BUICK DECIDED NOT TO START.WITH OUR LIGHTS IN PLACE WE COULD SEE POWER TO PUMP WAS IN PLACE AND GROUND HAD BEEN VERIFIED BEFORE - 4 OR 5 THUMPS TO BOTTOM O...
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1995 Chevrolet K2500 Cheyenne 6.5L Excessive Emissions, Misfire VIN: 1GTGK29F0S
Trouble codes: 18 (cam sensor), 19 (crank sensor).
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1996 Chevrolet Blazer 4.3L Hesitation, Surge, Poor Fuel Economy, fuel leak VIN: 1GNDT13W1T
Here it is. Upon further discussion with the owner we found out he bought the truck days before the trans failed. So we took some advice from some fellow techs here on IATN and started tracing the fuel lines. We pulled the tank and found someone had tried to f...
3
1997 Chevrolet Malibu 3.1L Low Coolant Light VIN: 1G1NF52M6V
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2000 Chevrolet Monte Carlo SS 3.8L No Start VIN: 2G1WX12K6Y
Connector at module had corrosion build-up. Cleaned it up and car was fixed. thanks for all the replies I got.
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2001 Chevrolet Cavalier Z24 2.4L abs / traction control / brake light VIN: 1G1JF12T11
sorry long response time but Customer has yet to return with car so i can see if any info would help me will repost if customer returns
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2001 Chevrolet Malibu LS 3.1L Instrument cluster VIN: 1G1NE52J41
thanks for the responses. According to the wiring diagram the ignition switch was the most likely culprit & getting several responses on this part was reassurance to disassemble. Once switch was removed, found contacts burnt. Replaced switch & vehicle start...
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2004 Chevrolet Silverado 2500 HD 6.6L Hesitation, Cuts out VIN: 1GCHK24214
the vac side was within spec. i tested the return flow values ofthe injectors and they were all returning to much fuel when compared to the spec as much as 3 times more. So i changed out all eight injector and the truck runs great and has a ton of power. thank... Trouble codes: P1093 (fuel pressure low while power enrich).
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