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Is my catalytic converter clogged??

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 89GMCSuburban, Sep 26, 2003.

  1. 89GMCSuburban

    89GMCSuburban 1/2 ton status

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    When I floor the throttle, it seems like it's running out of revs at about 4,000 or so...it just doesn't want to spin faster while creating power. My floor gets warm during drives, and I have a 3" body lift. When sitting at a light after driving about 10 minutes, My Check Engine light will come on and pop a code for running rich. When I start to drive off, it turns off after about 15 seconds. The idle is choppy and I get 12 MPG regardless of throttle input. I used to get 15, I'm not sure what happened. Could this be the converter?
     
  2. FL84K5

    FL84K5 1/2 ton status

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    Re: Is my cat clogged??

    Give it a laxative.
     
  3. GM Man

    GM Man 1/2 ton status

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    Re: Is my cat clogged??

    Could be hairballs /forums/images/graemlins/rotfl.gif /forums/images/graemlins/rotfl.gif
     
  4. 89GMCSuburban

    89GMCSuburban 1/2 ton status

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    Re: Is my cat clogged??

    Hardy harr harr... /forums/images/graemlins/rotfl.gif I knew I should've put a different title....
     
  5. rjfguitar

    rjfguitar 3/4 ton status GMOTM Winner

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    Re: Is my cat clogged??

    One way to fix it if it's the converter is to cut it out. /forums/images/graemlins/rotfl.gif But really, try getting the cleaner junk for it. /forums/images/graemlins/grin.gif
     
  6. dyeager535

    dyeager535 1 ton status Premium Member

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    A 350 with a truly plugged cat can't get out of it's own way.

    If the code is accurate, you are very likely CAUSING your cat to come apart though. Without the proper mixture, you will destroy it. Since you are injected, there's no reason for you to be running rich if it's working correctly.
     

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