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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for May 11, 2005
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Open Help Requests for GM
Help Request Answers
1992 Cadillac DeVille 4.9L No Start VIN: 1G6CD53BXN
Hi guys I have a no start on this cadillac and iam getting a code 53 that is dist signal interruped. I tested the dist by the test in alldata,every test showed no problem.I tested the spark and found that some of the plug wires were firing but not all of them ... Trouble codes: E53 (Distributor signal interrupted)
2002 Cadillac DeVille DTS 4.6L tire presure monitor VIN: 1G6KF57932
i'm unable to get any info from alldata. the recal procedure i pulled from iatn. any help would be appreciated.
1990 Chevrolet S10 2.5L Excessive Emissions, Poor Idle Quality, Cuts out, Misfire, Poor Fuel Economy VIN: 1GCCS14E1M
Hello friends. Whoever heard of such weird problems? I think we must all be nuts to work on this stuff. Need some help on this truck to figure out the fuel problem. Customer said that truck has been running fine since they rebuilt the engine and then all of a ...
1994 Chevrolet Camaro Z28 5.7L extended cranking VIN: 2G1FP32P1R
This has very extended cranking time. Once it starts, we see some black smoke come from exhaust. It clears out quickly and runs fine. We have ruled out intake leaks and vac leaks. O2 sensors and fuel trim are normal, no ignition system problems found. Suspect ...
1994 Chevrolet Caprice Classic 4.3L Differential VIN: 1G1BL52W8R
Customer just moved to NY from FL and after one snow storm came to our shop requesting we replace his open rear with a "posi". 7 1/4" ring gear with 28 spline axles that measure 1 3/16" on the outside of the splines. We've tried w/out success to order a powert...
1995 Chevrolet S10 LS 4.3L Excessive Emissions VIN: 1GCCT19Z9S
This car failed the asm emission test for 15 mph and 25 mph for excessive nox. First we found the Egr vac control solenoid to be less then 2 ohm. So we replaced it. Under the diagnosis it said that there could be damage to the ECU. After replacing the sol.,We ...
1995 Chevrolet K2500 5.7L transfer case VIN: 1GCFK24K6S
This truck makes a bearing whine noise only in 4x4 hi. It does it accelerating and decelerating. When cruising @ say 45mph, the noise is there somewhat. If you let off the gas the noise goes away for about 2-3 seconds and then returns. When the gas is applied ...
1996 Chevrolet S10 2.2L Slow Engagement VIN: 1GCCS1444T
Help from the GM Transmission guy's. The symtoms on this vehicle are, slow take off, 1-2 shift is weak, all other shifts seem normal but weak. The fluid pressure is 90 psi in gear and increases to 120 psi under load. When you shift into drive the engagement fe...
1999 Chevrolet Monte Carlo LS 3.1L trans VIN: 2G1WW12M6X
When damp, sometimes wont shift down,starts out in 2nd or 3rd gear, also speedometer only shows approx. 10 mph @ hwy speed, if stop car, put ign. to off wait a min. restart starts out in low gear but when shifting from low to 2nd seams to hit neutral or slips ...
1996 GMC Jimmy 4.3L No Start VIN: 1GKDSDFR6T
1996 jimmy no start sometimes. truck will start fine 4 or 5 days in a row hot or cold wet or dry. one time it will not start just crank. it will not restart on its own. one little shot of injector cleaner fires up no problem. will start once again for a few da...
1995 Oldsmobile Aurora 4.0L presure control solenoid VIN: 1G3GR62C0S
Hi group, this car had some trans issues so a trans shop overhauled it twice, the first was unsuccessful. since then very interm. it will throw a code 76 but by the time you test everthing is OK. One thing I noticed when reading data with the scanner QDM fault...
1996 Oldsmobile Cutlass Ciera 3.1L No Start, Cuts out, Stall VIN: 1G3AJ55M4T
Cuts out at idle and fires right back up. Once in a while it just cranks but will not fire. When it cuts out, I never lose fuel or spark. I did notice on the scanner that as soon as it goes into closed loop, it acts up, also I noticed that I lose communication...
1999 Saturn SL2 1.9L timing /starting VIN: 1G8ZK5274X
replaced valve and then put a new gasket kit on put every thing back together right tried to start it and it cranks but dosent start or make any noise. the valve was broken so we replaced it and put every thing back together and tried to start it first we put ...
2002 Saturn L200 2.2L Mechanical VIN: 1G8JU54F82
customer complaint of poor cooling. preesures are normal. system charge has been verified. compressor engages but will cycle between 53 and 65 degrees. i suspect expansion valve, but i am lost on how to confirm or deny my gut feeling, especially with such low ...

Fixes & Summaries for GM
Fix/Summary Answers
1988 Cadillac Eldorado 4.5L Surge, throttle sticks VIN: 1G6EL1158J
Finally the Cadi if fixed! Thanks to all of your replies and information, I located a short in the wiring loom leading to the pigtail to the IAC motor. I replaced the pigtail & re-adjusted the idle & TPS. Problem solved! I only found the problem by going throu...
1989 Chevrolet Cavalier Z24 2.8L Excessive Emissions, Surge, Misfire, Poor Fuel Economy VIN: 1G1JF11W2K
Thamks for all the suggestions that i recieved. It turned out to be the injectors the resistance was anywhere from 8-16 ohms and everything in between once the new injectors were installed the car ran perfectly and flew through emissions. Thanks again for all ...
1992 Chevrolet Cavalier RS 2.2L Excessive Emissions, Poor Idle Quality, Surge, Cuts out, Stall VIN: 1G1JC5440P
Thanks to all who replied to my request for help.The fix for this vehicle was another ECM. I had already replaced the ECM, which I had purchased from AC DELCO supplier,so I can only assume it was defective or I was sent the wrong part # previously.There appa... Trouble codes: 14 (Coolant temp sensorlow or shorted), 23 (Mat sensor), 42 (Est).
1999 Chevrolet Malibu LS 3.1L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1G1NE52J8X
Okay, this one is still haunting me,most of you inquired about the low mileage and the reason for the valve job,as I mentioned in the post I did not do the valve job but form what I gathered a leaking intake manifold gasket was replaced and the pusrods were no... Trouble codes: P00, 300 (random misfire).
2000 Chevrolet Blazer LS 4.3L Transfer case
It was an expesive try, but we replaced the encoder motor, and then it would shift. Encoder motor fixed this vehicle.
2001 Chevrolet Silverado 3500 6.0L engine VIN: 1GCGK13U12
The part of the piston skirt was broken off and wedged in the oil pick-up tube (blocking the screen 75%). Oil pressure was great. This after cleaning the top and changing lifters and oil. Any good source for pistons? Thanks again. Jerry
1990 Geo Tracker 1.6L Stall VIN: 2CMBJ18UOL
I removed the ECM and returned it to Auto and Truck Electronics in Florida. After 2 weeks I finally got it back, repaired under warranty. Car is now repaired. This was not a good company for me to deal with. If you call to find out the status they tell you to ...
2001 Oldsmobile Aurora 4.0L MIL Lamp on VIN: 1G3GS64C92
Thanks for all the help guys. This is a complex system and the number of codes is what confused me. Most of you had it right when you suggested checking the fuses. The fuse for the HO2S was blown and blew as soon as I replace it. I mentioned that a previous ma... Trouble codes: P0030, P0141, P0155 (a2 sensor heater malfunction b2s1), P1032 (invalid dtc).
1996 Pontiac Grand Am GT 3.1L anti-theft VIN: 1G2NW52M3T
thanks for all feedback! we opted to replACE the instrument cluster to see what happened. a few days and so far so good. the anti-theft module is intergral of cluster. the wiring all inspected good so this was our last option. again, thanks!
1996 Pontiac Sunfire SE 2.2L Hesitation, Stall, MIL Lamp on VIN: 1G2JB1241T
Well the customer took the car and blew the engine up, but the problem was the injectors had too much flow. Trouble codes: P0172.
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