Question about 1990 Chevrolet Lumina APV

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1990 Chevrolet Lumina Base 6 Cyl 3.1L (88,000 miles) June 3, New spark Plugs installed. (Original Spark Plug wires remain) July 15, Power Brake Booster Replaced. Shop said battery was disconnected and computer needed to automatically reboot. But the engine stalled all day at stops and when coasting. July 19, Shop ?cleaned? idle control valve and stalling problem stops. But the Engine now misfires. August 9, Shop tests (and dislocates coolant reservoir, now rubber bushings are cracked/split) and decides #5 is misfire but they are not responsible. When the engine is cool, it runs steady but as engine heats up, misfire starts. Shop # 2 says New Spark Plug wires must be installed and Induction Service required.

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  • jwneelley Oct 12, 2010

    According to Advance, the OBDII scan is only available for the 1996 and newer makes. Considering all the problems GM created with the W-cars, should I even consider keeping this car? The Serp Belt is worn out, now the motor mount busing is split open, the front windshield needs replacing. But I also feel like a car that has only 88,000 miles and can get 32 mpg should not be tossd in the girant scap heap of junked autos!

  • jwneelley Oct 12, 2010

    According to Advance the OBDII scan is for 1996 and newer models. Considering all the problems that GM created with the W-cars...AND these added factors: the serp belt is worn out, the motor mount bushing is split/cracked, the front windshield needs replacing...should I even consider keeping this car? But then why scrap a car with 88,000 miles that can get 32 mpg ?

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  • Chevrolet Master
  • 8,273 Answers

Recommend getting a scan of the OBD II connector for trouble codes, then get back to us. Autozone and Advance have free scanning service. The trouble codes will help us diagnose the specific misfire. With the codes, I can provide you some recommended troubleshooting or repair steps.

Posted on Oct 02, 2010

  • Jeff Turcotte
    Jeff Turcotte Oct 15, 2010

    Sorry, I was not notified of your comments until today. So they couldn't scan OBD I or there were no codes. It's back to the old way. I think you can get this car fixed up. There is a way to check the wires if you want to do your own troubleshooting before buying new wires. What you do first is listen for leaking sparks. If you can do it on a dark night, open the hood and look for sparks jumping from the wires. If no leaks, next check for opens. Take one wire at a time off the coil just a little and listen for the sparks jumping inside. If any case does not have sparks jumping, you have a bad wire. You should also check the plugs for a bad plug.
    If all of this checks good, consider replacing the ignition module inside the distributor.
    I can help you do the other things yourself as well, except for the windshield. If you're somewhat handy and have a socket set/wrenches, you can easily replace the belt. The motor mount may be a little harder, but I can give you instructions. It's up to you.

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09e9db9.jpg

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