Thread: catalytic converter and shifting

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  1. #1 Re: catalytic converter and shifting 
    The mod from over yonder TheOtherNick's Avatar
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    ok.
    01 gtp-big cam e85 dd 78dodge- guzzling fuel 05 cummins- rollin coal
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  2. #2 Re: catalytic converter and shifting 
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    I'm having similar problems with my 2001 GP GT Limited Ed.....Mechanic said it was Catalytic converter but I don't trust them now...(reasons not mentioned)...When it is cold out, the car doesn't have any problems except a little lack of HP....when warm, it's a nightmare...could that be the catalytic converter also? I'm changing the fuel filter and plugs tomorrow first....
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  3. #3 Re: catalytic converter and shifting 
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    The thing that tipped my mechanic to the cat was a code from OBDC for a secondary air pump. He said back pressure from the exhaust was restricting flow.
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  4. #4 Re: catalytic converter and shifting 
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    hi I am having the same problem with my 2002 . when cold it runs well. when it warms up it hesitates and sputters. I changed the fuel filter, this did not help. I was told it could be the converter. I have not had any check engine lights yet. Did you fix your issue.

    I changed the converter today and it solve the problem. It was plugged solid
    Last edited by Bob hand; 12-11-2010 at 12:52 AM.
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