Question about 1990 Buick LeSabre

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1990 Buick lasabre - stalling on idle...at lights..anytime I slow

Every time i come to a stop or slow down for a light the car stalls. I just changed the spark plugs which took care of one problem now I have this problem. Any solutions?

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I had the same problem it was my MAF sensor.

Posted on Dec 05, 2008

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Its possible that your vehicles fuel pump could be going out on this car sorry take it to a car dealer ship and it may cost you alot
scincerly: Brian

Posted on Nov 18, 2008

  • Bo Davis Oct 30, 2013

    check purge valve next to your firewall its rectangular box mine had a filter inside they get carbon build up or the little metal piece blocks air flow, hope that helps..

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To test this theory, when the engine stalls and stops, your mechanic can use a rubber mallet and hit the bottom of the gas tank, this will free the pump impeller and the car will start again.
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Try cleaning your grounds under the hood: under Ignition Module bracket, rf fender behind battery and lf fender in front of windshield washer fluid bottle.
I had similar problem and this fixed it.....grounds are very important for computer.
I used a carbon conductive grease on the connections to keep them from oxidizing.
Hope this helps you out.

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