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2001 Chevrolet Malibu Question: what is causing slow acceleration and high pithed noise while accelerating?



psmith4232, Euclid, OH, August 02, 2012, 04:08

Happens all the time for last few weeks. Started at freeway speeds, now even at 25-30 mph.

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  • Answer #1

    milesauto from Miles Auto Service Inc., August 02, 2012, 05:12

    Sounds like you may have restricted exhaust system....most likely a plugged catalytic converter. Take it to a shop that can test the exhaust system back pressure with a guage.

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