Question about 2005 Chevrolet Cavalier

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2005 Chevrolet Cavalier, No power

2005 chevrolet cavalier, 75000miles recently replaced the engine module, ran fine check engine lighton indicating downstream 02 sensor . car ran ok for a while then began losing power. parked car to replace 02 sensor, engine has no power and won't rev past 2000rpm. due to take to shop, any ideas?

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  • mike loshbough
    mike loshbough May 11, 2010

    what was the code?

  • Bruce Bracey
    Bruce Bracey May 11, 2010

    Can you smell gas in the oil ( sniff the dip-stick)?

    Has the fuel filter ever been replaced?

    Which O2 sensor was replaced, before or after the catalyst?

    Let me know.



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Sounds like possibly the catalytic converter is plugged up. It's under warranty. Dealer will replace free if it's the cat.

Posted on Mar 12, 2009

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Check air intake hose first, including MAF sensor (if dirty must clean) , then check for all other hoses for leaks and last but not least check air filter.

Posted on Feb 21, 2009

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