Question about 2005 Chevrolet Cobalt

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2005 Cobalt Check engine light blinking.

Cars starts up ok, but check engine light starts blinking, and engine makes a rough noise, and shakes. Also car has sluggish power when step on accelerator, wouldnt make it up hill and spits black stuff out of the exhaust pipe and smells like sulfur.

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  • rettaret Feb 01, 2009

    in regards to 2005 cobalt engine light, forgot to mention just filled up with gas 2 days before the problem started and also the oil life on dash shows 54% life. Could it be something other than the catalytic converter? Also just got car back from shop due to accident where radiator was replaced as well as the back axle and other pieces and parts.

  • rettaret Feb 01, 2009

    in regards to 2005 cobalt engine light, forgot to mention just filled up with gas 2 days before the problem started and also the oil life on dash shows 54% life. Could it be something other than the catalytic converter? Also just got car back from shop due to accident where radiator was replaced as well as the back axle and other pieces and parts.

  • rettaret Feb 01, 2009

    in regards to 2005 cobalt engine light, forgot to mention just filled up with gas 2 days before the problem started and also the oil life on dash shows 54% life. Could it be something other than the catalytic converter? Also just got car back from shop due to accident where radiator was replaced as well as the back axle and other pieces and parts.

  • rettaret Feb 01, 2009

    in regards to 2005 cobalt engine light, forgot to mention just filled up with gas 2 days before the problem started and also the oil life on dash shows 54% life. Could it be something other than the catalytic converter? Also just got car back from shop due to accident where radiator was replaced as well as the back axle and other pieces and parts.

  • kyjuan Feb 09, 2009

    same as rettaret

  • Anonymous Mar 29, 2014

    only blinks when hard acceleration

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  • Master
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You need to Replace the Catalytic Converter. That is what you are Smelling. It has Clogged up and will also Cause the Light on the Dash Problem. Please Rate My Response! Thanks!

Posted on Feb 01, 2009

  • Travis Humphries
    Travis Humphries Feb 01, 2009

    Nope, It is the Catalytic Converter. The Smell that you smell Only comes from the Sulpher Content in the Converter and will cause the Above Problems.

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