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Prev Professional Automotive Repair Technical Discussions for August 18, 2008
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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 Buick LeSabre Custom 3.8L MIL Lamp on VIN: 1G4HP52L6S
95 lesabre with intermittent check engine light,stumble, and code p1361.snap on scanner shows ignition control signal not toggling and possible problem with circuit #424 between spark module and ecm. module is good ,ecm checks good. are there any specific area... Trouble codes: P1361
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1997 Buick LeSabre Limited 3.8L fuel gauge VIN: 1G4HR52K3V
hey everyone i've had this car in my shop every week for three months for the same issue. the fuel gauge pegs out to passed full on average 2-3 times a day then levels its self off back to normal. we've replaced the cluster with new one right from the dealer, ...
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1978 Cadillac Seville 5.7L No Start VIN: 6S69B8Q486
I am needing a wiring diagram for the PCM fuel control system on this vehicle or any detailed PCM pin input / output connector color, wire color, and pin number for fuel pump control and fuel pump relay location. I have been told this year vehicle has internal...
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1996 Cadillac DeVille Concours 4.6L ebtcm VIN: 1G6KF5291T
looking for some insight on this caddy.intermittently set code p1571 in pcm & code 73 in ebtcm. codes will set every time within 20-30 minutes run time, car idling in shop or driving. strange thing is with key on engine not running, with battery charger instal...
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1999 Cadillac Escalade 5.7L Poor Idle Quality, Stall VIN: 1GYEK13RXX
This truck is really getting me. It runs fine and drives perfect. But if you drive around with the A/C on and stop the truck and turn the A/C off the motor will chug and cut out till it dies. Starts right back up, and only does this intermitintly. Injectors ha...
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1996 Chevrolet Corsica 3.1L Coolant level sensor VIN: 1G1LD55M0T
How does the sensor sense a low level of coolant? Customer states that the light should be on with KOEO. We told him that if coolant is at proper level the light will not be on KOEO. We drained the tank and light did not come on. We checked for power on Y/B wi...
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1996 Chevrolet Tahoe LS 5.7L Poor Idle Quality, Cuts out VIN: 1GNEK13R6T
what a day,now my tahoe has quit, running for parts for the caravan.spray fuel in the throttle body and it runs.prime with the key on and off a couple times and it will start rite up and die.you can here the pump in the tank running.it was new last fall.pressu...
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1998 Chevrolet S10 LS 4.3L instrument cluster VIN: 1GCCS19X5W
Scanner shows coolant temp at 180 degrees and temp gauge reads at bottom, cold, needle never moves. Fuel level on scanner 24%, gauge in dash empty (scanner shows 100% when disconnected at fuel pump also sets code in vcm). charge light stays on always (except w...
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2000 Chevrolet Venture Warner Bros. 3.4L Misfire VIN: 1GNDX13E4Y
Thanks in advance for all your assistance. Vehical came in with surge at 50mhp and check engine light on. found crank sensor code po336, egr flow po403, and egr sensor a po405. found crank sensor signal irratic, replaced. found egr connector destroyed, repaire...
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2002 Chevrolet Silverado 2500 HD 6.6L stops pulling VIN: 1GCHK23122
same problem before rr trans d light flashes when prob exsist
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2002 Chevrolet Silverado 2500 HD 6.0L No Start VIN: 1GTHK29U42
This P.O.S. wont run, We should have checked it out more before changing the fuel pump, but they all need fuel pumps RIGHT? Well anyway no command from computer to turn pump on or fuel injectors, with scan tool can activate fuel pump and injectors, no codes in...
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2003 Chevrolet Trailblazer North Face 4.2L a/c system VIN: 1GNDT13S33
I get cold air out of the defrosters and no cold air out of the vents even when i select each mode.
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2004 Chevrolet Tahoe LS 5.3L gauges, p/windows, p/seat, a/c, radio, battery dra VIN: 1GNEC13ZX4
Cust was driving in Orlando, speedo and gauges zeroed, a/c went warm, radio quit, cel/brake/abs/srs/ lights came on, front power windows inop, rear power windows inop from master switch but worked with rear switches, p/door locks inop. Drove home like this app...
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2005 Chevrolet Silverado 2500 HD 6.0L odometer VIN: 1GCHK23U65
Hello Chevy Techs. My neighbor just bought this truck from a dealer in ILL and the truck shows 36,310 miles on the odometer. when you select trip b it shows 42,461.5 ? My question is how can the trip meter show more miles then the truck has on it. I have check...
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2008 Chevrolet Silverado 1500 WT 5.3L 4x4 VIN: 1GCEK19048
This is for all you GM guys out there we run all Chevrolet 4x4 pickups the 2008 we have all have Automatic Transfer Cases when going in and out of fields the do not want to come out of 4x4 some times no way to tell when there going to work or not just happens ...
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2008 Chevrolet Malibu Classic LS 2.2L sir VIN: 1G1ZS58F88
The vehicle has a code 8086 undocumented in the SIRDM. I am able to clear the code but it returns as soon as you restart the vehicle. I find no reference to this DTC in OD5 or AllData. When I look at the AirBag data noticed the battery voltage PID reading 3/4v...
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1999 GMC K1500 Suburban SLE 5.7L Door Lock Actuator VIN: 1GKFK16R3X
Would certainly appreciate any help I could receive on this problem. The locks on the vehicle will not fully lock or unlock. You can hear the locks making the familiar click sound, but they only move about 1/16 of an inch at the most. All door lock actuators w...
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2004 GMC C5500 Topkick C5C042 6.6L transmission VIN: 1GDE5C1264
the truck drops a gear when driving down the road. and then you have to stop and put it in park to get it to shift fine again. if anyone can give me any idea on what it might be.
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2002 Pontiac Bonneville SLE 3.8L Starting VIN: 1G2HY54K42
this vehicle has an intermittent no crank or delayed crank. very intermittent, sometimes cranks right away sometimes split second before it begins to crank sometimes 2 or 3 seconds. i have verified during no crank condition: no voltage to s terminal on starter...
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2002 Pontiac Montana 3.4L Cuts out VIN: 1GMDU03EX2
Original problem - died any time any place crusing, AFTER INSTALLING 2 CRANK SENSORS DOWN THE STREET VEHICLE CAME HERE. SCANNED FOUND CODE FOR CAM SENSOR, INSTALLED CAM SENSOR, CLEARED CODES, STILL STALLED DRIVING, NO TIME FRAME TO WHEN IT HAPPENS, WOULD STALL...
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2004 Saturn Vue Red Line 2.2L Shifter VIN: 5GZCZ23D54
On the bottom of the shifter arm there is a plastic connector that goes into the adjuster on the end of the shifter cable. The dealer tells me I have to buy the entire shifter assy for 300 bucks to get a $10 part. I can't see how to justify that to the custome...
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Fixes & Summaries for GM
Fix/Summary Answers
1996 Buick Roadmaster Estate Wagon Collector's Edition 5.7L Hesitation, Surge VIN: 1G4BR82PXT
Well its fixed . being that it was a intermitant problem I disconnected the egr valve and drove it I could not get it to act up so I called the customer and had them drive it for a week . the problem never occured so I replaced the egr upon removal I found tha...
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2005 Buick Century Custom 3.1L Stall VIN: 2G4WS52J15
WELL THANKS AGAIN GUYS,THE CUSTOMER JUST RETURNED 1 WEEK LATTER SAID ALL WAS GREAT.WHAT THE FINAL RESULTS I REMOVED THE IAC AND FOUND ALOT OF CARBON SO I CLEANED THE PASSAGE AND RELEARNED IDLE AND ALL WAS GOOD.I WOULD LIKE TO THANK 2 TECHS FOR THERE HELP AT UN...
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1995 Chevrolet Lumina LS 3.1L Poor Idle Quality, Stall, Misfire VIN: 2G1WN52M5S
THANKS EVERY ONE FOR ALL THE HELP CAM SENSOR SEEM TO FIX IT ALL ALONG I JUST COULDN'T UNDERSTAND MY SCANNER READINGS. COSTOMER MAKE TRIP TO CHICAGO 300 MI ALL GOOD THANKS AGAIN EVERYONE
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1998 Chevrolet Lumina 3.1L Hesitation, Surge, Stall VIN: 2G1WL52M7W
One of the replys said to check for Burned wires that was it I found 2 burned wire , coming from the coil to what I think is the knock sensor. They were a blue and yellow wires that layed on the exhaust , someone had put an alarm on and spliced into one of th...
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2002 Chevrolet Astro LS 4.3L MIL Lamp on VIN: 1GNDM19X82
SORRY ABOUT THE FUZZY POST. THIS ONE IS FIXED MASS AIR FLOW .THANKS TOO ALL WHO TOOK THE TIME TO HELP THE SPECS I GOT FROM SCOT AND CRIS HELPED ALOT THANKS AGAIN Trouble codes: P0101 (mas air sensor), P0463 (fuel level sensor).
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2003 Chevrolet Trailblazer North Face 4.2L Poor Idle Quality, Misfire, SES LIGHT IS ON VIN: 1GNDT13S33
I had bad spark plugs. I replaced all of them with the new coil pack and I clean the throttle body and air intake. I replaced the camshaft position sensor solenoid and camshaft sensor and crankshaft position sensor. She is running like new. Thanks for the help... Trouble codes: P1345 (camshaft/crankshaft sensor correlation), P0301 (cyl 1 misfire).
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2001 Saturn SC2 1.9L ac blower VIN: 1G8ZY12761
ended up being the BCM. Interestingly, the Saturn BCM is not programmable with the tech 2. The Saturn dealer was needed to configure the BCM]
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2002 Saturn SL1 1.9L No Start, Stall VIN: 1G8ZH52802
Thanks to all who responded with the relearn procedure for this vehicle. Our mitchell program stated the same but said that the security light should change status within the 10 min periods. Our light would not change status. therefore we thought we were on th... Trouble codes: 1599 (stall detected).
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2004 Saturn Ion-2 2.2L Compressor VIN: 1G8AN12F94
Finally found a burned area under the fuse panel, and customer said they had trouble since installing an aftermarket radio. She did not want to spend any more on the car, so no fix. Thanks for the replies. John.
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