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Prev Professional Automotive Repair Technical Discussions for October 29, 2004
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Open Help Requests for GM
Help Request Answers
2001 Cadillac DeVille DTS 4.6L Tire sensors VIN: 1G6KF57971
We have this 01 Deville DTS in our shop right now. On the message display it says check tire pressure and displays each tire's pressure. The left front tire display is blank. What we are trying to find out is, what sensor the vehicle uses to determine tire pre...
1989 Chevrolet S10 Blazer Sport 4.3L No Start VIN: 1GNCS18ZXK
Hello Fellow Techs, I have one that's really puzzling me and wanted to see if anyone has come across this. The customer stated that he was going down the road and the vehicle stalled on him and wouldn't restart. When I got it in would crank, have fuel and inj...
1998 Chevrolet K2500 Cheyenne 7.4L fuel gauge VIN: 1GCGK24J7W
If you have any sugestions, I would appreciate hearing them. Pete
2001 Chevrolet Impala 3.4L ignition/starter VIN: 2G1WF55E01
This vehicle exhibits an intermittent no crank. (customer complaint,we have not experienced) what is confusing us is we have seen two newer chevys that exhibit an unusual cranking time. we turn the key for a split second then let it go to run but the car crank...
2002 GMC Envoy SLE 4.2L Starting VIN: 1GKDS13S72
Original engine dropped the seats in cylinder 2 and was replaced with used engine. The original engine would start and run before swap. Now, will not crank over at all. All fuses checked. Will crank over if starter is manually engaged. I'm guessing this is a s...
2002 GMC Yukon Denali 6.0L radiator VIN: 1GKFK66U32
gentlemen, did a complete search of gm product line of 6.0l , v8 an have found nothing to help me with this. i need some direction. first car was returned to leasing company and we received for a gen.ck over before resale. on visual inspection, just opening h...
1971 Oldsmobile 442 455CID Mechanical
Looking for the torque specs for the engine including bearings, heads etc. Trying to help a friend put this car together. Thanks!!
1998 Oldsmobile Aurora 4.0L No Start VIN: 1G3GR62C3W
We have inherited this car from another garage. Apparently the car drove in with a coolant leak and they found a leak from the head gasket. They proceeded to pull the engine and sent it to a rebuilder. The rebuilder had to replace the block (stripped threads) ... Trouble codes: 1350 (Bypass line monitor), 1375 (No CKP sensor 1 or 2)
2000 Oldsmobile Silhouette GLS 3.4L p/s hose VIN: 1GHDX03E7Y
2 wweks ago we replaced left hub bearing, right was making noises but client could only afford 1 at a time, she brought it in this time to have rt hub bearing replaced, after repair we found a popping noise when you turn steering wheel for hard turns. this did...
2000 Oldsmobile Alero GLS 3.4L MIL Lamp on VIN: 1G3NF12E9Y
Heres a good one. This is my brothers car and he left it because the ses light was coming on intermittently. When I started the car to pull in the shop the ses light came on. I hooked up the Snap On mt 2500 scanner and checked codes. The mil light had gone out...
2001 Oldsmobile Intrigue GX 3.5L No Start VIN: 1G3WH52H61
Good Morning, Here is one to contemplate: this vehicle has an extended crank time after a hot soak of 20 to 40 minutes. Starts perfect cold. I have been chasing this for 2 months and you can see by the related repair history, I have been over this thing a cou...
1996 Pontiac Grand Am SE 2.4L Hesitation, Cuts out VIN: 1G2NE52T3T
I am the lucky recipient of 2 identical vehicles with identical problems. When the engine is cold and you start out, the car will cut out and coast for up to 10 seconds, then take off just fine. That is the only time this problem shows up. Vehicle won't show t...
2001 Pontiac Montana 3.4L brakes VIN: 1GMDXBE61D
The customer has complained that the brake pedal feels very low, and is concerned about not being able to stop. i myself feel that the pedal is low, but the vehicle stopps well. the abs comes on when needed.we have a feeling that the abs module may be the prob...
2001 Pontiac Aztek 3.4L Fuel Gauge VIN: 3G7DA03E41
Hello, I have this Aztec that came in with a lot of problems--Intake gasket leaking oil service and wheel brg`s. The Main complaint by the customer is that the fuel gauge will go to full intermittently. I checked the body connector under the vehicle and ran th...
2000 Saturn SL1 1.9L Excessive Emissions, Poor Idle Quality, MIL Lamp on VIN: 1G8ZH5281Y
Hello fellow techs - Saturn guys please help, This car came in with a high idle [2500 rpm] would drop after about 1 min. and seems to run ok - my problem is I can't access the computer for codes or data stream [using genisis otc], I have gone through the no co...
2001 Saturn L200 2.2L passlock VIN: 1G8JU54F81
diagnosed an intermitant crank-no start,replaced passlock sensor & new part will not relearn.

Fixes & Summaries for GM
Fix/Summary Answers
1990 Cadillac DeVille 4.5L Excessive Emissions, Poor Idle Quality, Misfire, Poor Fuel Economy VIN: 1G6CD5332L
After checking all the data and replies twice more , I decided to try the simplest thing first changed plug wires. Fixed this headache again i forgot the K.I.S.S. principle. Thanks again for the help
1988 Chevrolet C1500 Cheyenne 5.7L Stall VIN: 1GCDC14K2J
thanks for everyone's help on this one.we had a weak magnet on the distributor shaft. at idle under a load the signal from the pick up coil would drop off enough for the truck to stall. thanks again. wayne [...]
1995 Chevrolet Blazer 4.3L No Start VIN: 1GNDT13W3S
Installed new GM igntion module, fixed problem. I would like to thank the 6 who replied but especially Jim from Michigan, your advance was right on the problem. Thanks, Rick Trouble codes: P1351 (EST Output High or Pulses Detected when open.).
1995 Chevrolet Lumina APV 3.1L No Start, Cuts out, Stall
Thanks for everyones suggestions. After disassembling TBI unit and regulator, then reinstalling, vehicle ran perfect. I suspect maybe the fuel preesure regulator was the culprit. Only time will tell.
1996 Chevrolet K3500 Cheyenne 6.5L tcc lockup VIN: 1GCHK39F5T
It's finally fixed. I found 2 problems. Thanks to all who replied. After checking voltages, voltage drops and inputs and outputs I tried scoping the crank sensor as Greg and Sherman had suggested. Sure enough the crank signal would get weak at speeds of 1200 t...
2001 Chevrolet Silverado 2500 HD 6.6L fuel guage jumps
thanks all that replied it was the fuel sender- replaced and all is ok
1998 Geo METRO 1.3L overheating VIN: 2C1MR5227W
thanks everyone I had 10 replies and all were very helpfull the fix was to replace the radiator again, i lerned the hard way that new parts are not always perfect, the first one had weld partialy brocking some of water lines inside the radiator, customer took ...
1989 Oldsmobile Cutlass Ciera SL 3.3L No Start, Poor Idle Quality, Cuts out, Stall VIN: 2G3AM51N7K
Sorry guys, but this car has not yet been fixed. Customer has another car to drive and is not in a hurry to get it back. We just have not had any time to look at it again. Thanks again, Korey.
1999 Oldsmobile Aurora 4.0L Stall, MIL Lamp on VIN: 1G3GR62CXW
hi everyone, this car had a wire in the loom behind the dash that was grounding out. what a pain finding it but all is well thank you for all the help.. HH Trouble codes: 1604 (LOSS of ICP SERIAL DATA), 1605 (loss of hvac serial data), 1603 (loss of sdm serial data), 1602 (loss of abs serial data), 1276 (vart sdl circuit or signal), 1275 (pcm to ebtcm communacation problem).
1997 Pontiac Sunfire SE 2.4L Steering VIN: 1G2JB12T2V
Thank you all for taking the time to reply. Most of you agreed with me that it must be a rack problem. I installed a remanufactured rack and flushed fluid out, problem solved. Appreciate it. Joe
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