Question about 2001 Buick Regal

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2001 buick regal gs 3.8L

All of the sudden the engine has a hard time accelerating, spitting/coughing, changed fuel and air filters, pulled all intake sensor connections off with no difference in acceleration. had the transmission checked by shop. only does it at high rpm when not in gear and does it during entire acceleration while in gear. makes a slight hissing/ rubbing sound from drivers side while acceleration is inhibited. if hissing sound goes away for a moment engine runs fine. does not make a difference with the air cleaner detatched. does not appear to have a miss or firing problem.

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  • Craig Hendricks Jan 04, 2009

    yes,

    That's exactly what it was. I did not consider that because the car only has 34,000mi on it. The dealer replaced the Cat and the car runs perfect. Thank you for the reply.

  • Anonymous Mar 19, 2014

    car makes a noise when accelerating sounds like its underneath the car especially in high gears pulling away

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Sounds like a plugged catylic convertor. You might check with a GM dealer to make sure if it falls in the Special Policy coverage to get it replaced under warrenty, it has to have less than 120,000 miles on it though.

Posted on Jan 04, 2009

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