Question about 1991 Buick Park Avenue

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1991 Buick Park Avenue- computer problem?

Can someone tell me where the computer is for a 1991 Buick Park Avenue and what the symptons are when it is bad. I think it might be the computer that is causing my problem but don't know where it is located.

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  • rrich32979 Dec 26, 2008

    While traveling home our car started losing power and the rpm gauge went wild, it would maybe go a little and might do a little better for a short distance then would shut off but would start right back up. We drove quite a ways to try and get to the next town then the next day took it to a service station and the mechanic thought at first it was the computer but after a while came back and said it was a connection to the computer that was the problem. Drove over 200 miles home w/o any more problems but then it started up again and we took it to a shop and they said the computer was weak but they did not replace it..not sure why but now we can't drive it due to this problem. The auto shop just put in a fuel filter and that's all they did. I'm thinking the auto shop we use is not doing justice to our auto because we had just taken in in for the entire ac work just before our trip. The Buick only has 120000

    on it.

  • buickragtop Jan 04, 2009

    We have the same problem with our 1991 Park Avenue. The garage thought that it was the crankshaft or camshaft sensors. Both replaced,but the car is still having the same problem. Replaced the coolant sensor next. Still having the same problem. Also appears to be the ECM computer.

  • racin31 Feb 10, 2009

    first you need to see if there is any codes can count the number of times ses light flashes on dash by grounding the ground wire at tester plug in (aldl terminal)..i believe its the f terminal.check your manual to be sure...the computer is located on the right side up under the the kick panel.dont have to remove the glove box

  • David Johnson
    David Johnson May 11, 2010

    the computer I am almost certain is behind you glove box under yuor dash, but may I ask why you suspect the computer as being bad, I think I could help you but need to know why you suspect the computer



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You can find it under the passenger side, below the glove box. Usually, when they fell, you will get mutiply codes that don't make sense, but needs to be tested with a scan tool, Genesis, or Snap on Scanner.

Posted on Oct 12, 2009


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