F-250 light duty 98

Discussion in 'Ford F-250 and F-350 Suspension' started by FIFTY1FIFTY, Oct 29, 2013.

  1. FIFTY1FIFTY

    FIFTY1FIFTY Junior Member

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    Still running rough though


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  2. Bdons-SD

    Bdons-SD Anti spark plug!

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    Google COPs and spark plugs for a 4.6, you will find every scrap of info on it that has ever existed.



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    Last edited: Dec 31, 2013
  3. FIFTY1FIFTY

    FIFTY1FIFTY Junior Member

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  4. Bdons-SD

    Bdons-SD Anti spark plug!

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    I just saw your other thread where it says you already changed the COPs and the plugs so... Nvm... Ha ha


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  5. FIFTY1FIFTY

    FIFTY1FIFTY Junior Member

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    I have to check the firing order and make sure I have it right


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  6. Roush PSD Interceptor

    Roush PSD Interceptor 7.3L Straight Piped Diesel

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    Sounds difficult to diagnose with no CEL
    codes to give a general direction of the rough
    running issue.

    Have ya tried
    cleaning the MAF with an approved MAF cleaner?
     
  7. ak_cowboy

    ak_cowboy Penguin Hunter

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    Have you taken it to Napa or vautozone to have them run codes? Ford was able to diagnose which COP was misfiring on my truck even though my Gryphon couldn't find anything.
     
  8. FIFTY1FIFTY

    FIFTY1FIFTY Junior Member

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    I have a scanner and it gave me 2 misfire codes and a vacuum line code[​IMG][​IMG][​IMG][​IMG]


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  9. Roush PSD Interceptor

    Roush PSD Interceptor 7.3L Straight Piped Diesel

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    Life just became easier.
     
  10. FIFTY1FIFTY

    FIFTY1FIFTY Junior Member

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    ?


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