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2001 Buick LeSabre Question: cly misfireing

 

Question

eddie01, East Hartford, CT, January 30, 2010, 09:06
 Rookie

I PULLED A CODE OF THE COMPUTER PO300 RANDOM/MULTIPLE CYL MISFIRE DETECTED. CAR HAS 120K. SERVICE ENGINE LIGHT ON.

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  • Answer #1

    Bret Bodas from RepairPal Test Shop, January 30, 2010, 12:34
     Master

    Check this out: http://repairpal.com/OBD-Code-P0300

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  • Medium-star Best Answer
    January 30, 2010, 13:15
     Rookie

    Get it fixed asap, could be leaking coolant in to engine through leaking upper intake manifold. Check your coolant level in overflow bottle and radiator (when cold) to verify. If it is a leaking intake could cause engine to hydrolock and more severe damage will result.

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  • Answer #3

    April 07, 2010, 11:11
     Rookie

    I just had simular problem. Was the ignition control module. Runs great now. No misfiring.

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