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Prev Professional Automotive Repair Technical Discussions for June 3, 2005
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Open Help Requests for GM
Help Request Answers
1990 Buick Regal 3.8L Cuts out, Misfire, MIL Lamp on VIN: 2G4WB14L5L
Car runs good cold, but after good warm up spits, sputters and stalls. Snapon scanner starts to wig out, coolant temp goes from normal to -14. O2 reads lean extreme, tps readings jump to 4.40 when this spitting and sputtering starts. Code 42 shows up on scanne... Trouble codes: 42 (est problem)
1995 Buick Park Avenue 3.8L fuel enable VIN: 1G4CU521OS
I suspect pass key failure. Engine runs a few seconds and dies. Initial complaint was occasional no crank. Now it cranks always but starts and dies. Have ohmed key pellet and lock cylinder wires, all check out. Have checked voltage at white connnector D14 drk ...
1998 Buick Regal LS 3.8L engine shuts down - dash lights go out and signal VIN: 2G4WB52KXW
intermittent problem - vehicle starts ok - backs out of driveway, gets to corner and when he puts on the signal to turn the car will quit. all dash lights are out except drive range lights. will turn key off - restart engine - will be ok for days. sometimes ve...
1976 Cadillac Eldorado 8.2L Excessive Emissions, No Start VIN: 6L47S60282
need wire schematic for this old beater for powertrain electrical.
1993 Chevrolet Cavalier RS 2.2L abs codes VIN: 1G1JC5448R
1993 chevy cavalier customer complaint that brakes go to the floor at times.test abs codes started with c0045 right front abs channel will not move and c0053 right front abs channel in release too long . tested with tech 2 abs motor pack failed . replaced moto...
1994 Chevrolet C2500 Suburban 6.5L engine power VIN: 1GKGK26F5R
Loosing vacuum to turbo after engine warms up. While engine is cold. engine performs perfectly. Only after normal temp is reached vacuum to the turbo charger is intermittent. Engine boost normally runs at 9-10. After the loss of vacuum occurs the boost drops...
1994 Chevrolet Camaro 3.4L abs motor pack
We determined there is a short in abs motor pack by way of pinpoint resistance tests. Car is coming back in on Monday for motor pack replacment. According to Alldata, the gear tension must be relieved with a scan tool before the unit is serviced. My Snap On br...
2000 Chevrolet Malibu 3.1L Misfire VIN: 1G1ND52M8V
Hi iatn members, This car has a misfire on #6 cylider at idle. The car seemed to misfire worse when first started after it had sat awhile and then clear up after idling about half a minute. I figured injectors may be leaking a so I put fuel gauge on and press... Trouble codes: P0300
1996 GMC Jimmy 4.3L 3-2 downshift VIN: 1GKDT13W7T
this truck has given me problems in the last few days.when the truck is cold, the transmission shifts normally through all the gears and down shifts normally as well.I've checked all the fuses and wiring and all seem ok,When you drive the vehicle with the scan...
1997 GMC Jimmy SL 4.3L Unknown VIN: 1GKDT13W5V
We have this little jimmy with a funny noise coming from in the bellhousing area.I was so sure it was a busted flywheel that we slid tranny back and changed it.Still have a noise like something is hitting in that area.doesnt sound anything like a rod knocking....
2001 Oldsmobile Intrigue GX 3.5L Suspention VIN: 1G3WH52H51
Hi everyone, We need help tracking down a severe noise comming from the right front suspention area. It happens mainley when the steering wheel is turned either left or right and the car goes slowly over a bump or the brakes are applied and released.The noise...
2005 Pontiac Vibe 1.8L abs VIN: SYSM63885Z
the first three or four stops after starting and driving the abs will activate. abs will work normally after this happens. i have checked the tone wheels and they look ok i have compaired the speed sensors whith the the tech2 while driving in a straight line a...

Fixes & Summaries for GM
Fix/Summary Answers
1997 Buick Park Avenue 3.8L MIL Lamp on VIN: 1G4CW52K0V
thanks to everyone that replied. RICH AND KEVIN NAILED IT. I went to the car and removed the pcv insert and found NO pcv valve. once I put new one in it worked great and no more code thanks guys Trouble codes: 0401 (egr insuficienent flow.).
1993 Cadillac DeVille 4.9L No servo operation VIN: 1G6CD53B1P
After doing several tests with the onboard diagnostics, I tried manually checking components. I got a lot of replies on the brake switch, so I went there first. You could imagine my frustration when it tested fine. I then went towards the PCM. Bradford from Ca...
1995 Cadillac Seville SLS 4.6L engine VIN: 1G6KS52Y1S
thanks for the help on this. i had already used the dye but could still not see the source of the leaks. after dropping the cradle down i could see that the freeze plugs in the head were leaking(yes it does have freeze plugs).the only way to replace the plugs ...
1996 Chevrolet C2500 Cheyenne 5.7L Stall VIN: 1GCGC29R9T
Well this is another one for the books. I had monitored the crank signal and the fuel pressure at the time of the stall out. I found that the fuel pressure droped douwn to 40psi. On a vortec engine this is not accecptable for the injectors to deliver fuel thro...
1998 Chevrolet Express 3500 LS 5.7L whistling noise VIN: 1GAHG39R0W
Thanks for all the responses. Although the noise did not appear to be from the pcv area, I replaced the valve as was suggested. The noise disappeared completely. I doubt replacing the waterpump had anything to do with this but the customer was convinced th...
1998 Chevrolet Camaro 3.8L No Start, MIL Lamp on VIN: 2G1FP22K2W
Thanks to all for your input. I received a note from the customer yesterday and it read: 'Thanks, the car is running great'. Replacing the evap. solenoid seemed to take care of the problem on this one.
1999 Chevrolet Tahoe 5.7L int lights and door locks VIN: 1GKEC13R9X
the first modual was bad # 938716 the other modual [...] was never installed after replacing the 938716 again and having gm code the keyless everything has been working thanks gino [...]
1994 Oldsmobile Cutlass Supreme 3.1L No Start, Poor Idle Quality, Hesitation, Surge, Cuts out, Stall VIN: 1B3WH55M2K
Well we went with the crank sensor (it was a guess) it tested fine. road tested my self for 60 km and all was good, so hopfully I dont see this back for the same problem. Thanks for all your suggestions it was a big help
1995 Oldsmobile Achieva S 2.3L engine VIN: 1G3NLI5D95
I am at last done with this car. I waited to close to make sure ever thing worked out ok. It came back after five days with the plastic upper hose connection on the head ruptured open. It was new aftermarket and had no idea why it failed. I installed a new gm ...
1993 Pontiac Sunbird LE Value Leader 2.0L Hesitation, Surge, Cuts out VIN: 3G2JC51H5P
Hello again, all! Sorry it took a few days to get this sorted out. I used some spare time here and there to try things out. Thanks very much to all who responded to my request, some very good ideas were suggested, one of which led to this fix! The camshaft l...
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