Question about 1993 Buick LeSabre

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Won't idle My 93 Lesabre quit on me the other day. It will not start without stepping on the gas pedal and it will not run without constant pressure on the gas pedal. Everytime I let off the gas it dies. Can you offer a solution. I don't think it is the fuel pump as it runs when you step on the pedal. Perhaps it may be a vacuum leak or oxygen sensor. I would appreciate your help on this. thanks

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  • bigkvils Feb 01, 2009

    It does run smooth when I have my foot on the gas pedal.

  • Gary Loney
    Gary Loney May 11, 2010

    is it running rough when it is running?

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You possibly have a clogged fuel filter, a vaccum leak would cause your engine to idle high, and the oxygen sensor would set off the check engine light, but it may be worth replacing the oxy sensor given that the car is 16 years old. Try replacing the fuel filter first and see if that helps.

Posted on Feb 11, 2009

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