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Prev Professional Automotive Repair Technical Discussions for October 30, 2005
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Open Help Requests for GM
Help Request Answers
1947 Chevrolet One Ton 250CID Crank Balancer VIN: 7143304811
Hi. Truck is older than me. Came in-Distributor not turning, removed distributor, Camshaft not turning. Having great difficulty removing Cank Pulley to access the timing gears.Pulley still has the tabs on it for the hand crank, found two threaded holes in pull...
1985 Chevrolet Corvette 5.7L Stall VIN: 1G1YY0783F
fuel pump pressure & volume test great, fuel filter is clean - spray throttle body cleaner in pcv hose, engine runs - tested injector circuit, power to both sides but do not pulse - engine grounds are good as well as all power circuits to ecm - circuit 430 to ...
1999 Chevrolet Tahoe LS 5.7L radio VIN: 1GNEK13R1X
This factoy radio has the lites always not working on the 2 of the preset buttons and the radio/aux buttons, but the digital part works fine,I kind of think they are just burned out every thing works just fine the cass/deck and c/d and radio but its a little t...
2002 Chevrolet Avalanche 1500 5.3L all gauges VIN: 3GNEK13T93
No codes, every thing runs good ,cockpit lights, fuel gauge, temp gauge, all lights flicker, give flase readings then two minites later all instrument start working normaly. One day all is good next day problems again. No drivablity problems.have no prober equ...
1997 GMC C1500 Sierra SL 5.7L Poor Idle Quality, Misfire, MIL Lamp on
Vehicle came in with CEL on and engine misfiring, pulled code P0300. found #5 spark plug fouled with fuel deposits. Vehicle had Bosch Platinum plugs, original wires,cap, rotor and fuel filter, air filter was clogged and PCV valve was not funtioning. Replaced #... Trouble codes: P0300 (Misfire Detected)
1992 Pontiac Grand Prix LE 3.1L Excessive Emissions, Poor Idle Quality, Hesitation, Misfire, Poor Fuel Economy VIN: 1G2WH54T7N
hello fellow techs, Got myself in a quarrel here working on uncle's car. it has a cylinder 5 misfire that only occurs at idle, off idle it is fine. I have replaced the injector, put new plugs and wires on it. it has great compression 175 and leakdown was 10-1... Trouble codes: 35 (iac circuit malfunction)

Fixes & Summaries for GM
Fix/Summary Answers
1994 Buick LeSabre Custom 3.8L starting VIN: 1G4HR52LXR
thanks for info on pass key system. just wanted this to verify problem without removing steering wheel etc. thanks to all who replied, big help.
1995 Buick Park Avenue 3.8L Poor Idle Quality, Hesitation, Stall, Misfire, MIL Lamp on VIN: 1G4CW52K8S
This one still remains un-repaired, the owner as of today, still is wanting to keep it here until it is repaired I will give a update if I have any other information. There seem to have been some confusion on the code and this system, this is a 1995 OBD1 Feder... Trouble codes: 623 (Prom Error).
1998 Chevrolet K2500 Suburban 5.7L Hesitation, Misfire, MIL Lamp on VIN: 3GNGK26R1W
I want to thank all the people who sent me replies. I have not yet fixed this suburban. The customer had to go back home on Sunday. They said that they will be back in town in a month to let us have another chance at it. I am confident we will. I received many... Trouble codes: P0300, P0301.
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