Question about 2001 Toyota Celica

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I have a 01 celica, it makes a strange noise when i accelerate and when the a/c is on.

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  • babaylysol Jun 26, 2009

    its sort of a knocking noise, it sounds like the car is struggling to accelerate. when its the ac it sounds like a motorcycle thats idling.



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Please describe the noise.

Posted on Jun 25, 2009

  • Ned C Cook
    Ned C Cook Jun 26, 2009

    Test time. Is there any odor of rotten eggs or sulpur coming from the exhaut? Does the exhaust stop at the same time the engine dors? Is ther any wheezing coming from the tail pipe. These will all confirm a restricted catylictic converter. If it's the case, It needs replacing. - Good luck, Ned



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