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by dabid1 on January 2nd, 2008

dabid1

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I have a 1999 Ford f-150 v8 4.6. My engine bogs down at low RPMs and the nagain once I get around 40 to 50 MPH. I replaced the plugs and and coils. My check engine light came on when the problem started and i was told it might be my cat. convt's any help?

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  • by Borderlinux on January 2nd, 2008

    Borderlinux

    Since it is a post-1996 vehicle, it uses OBD-II and a lot of information can be obtained simply by plugging in a diagnostics tool (or counting check engine lamp flashes after jumping the appropriate pins on the diagnostic connector. Specifics on how to do that would be in a manual like Chiltons or Haynes, which you may even find at your local library).

    Randomly swapping parts without getting the diagnostics codes is quite foolish these days.

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You're reading I have a 1999 Ford f-150 v8 4.6. My engine bogs down at low RPMs and the nagain once I get around 40 to 50 MPH. I replaced the plugs and and coils. My check engine light came on when the problem started and i was told it might be my cat. convt's any help?

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