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  1. #1
    browan's Avatar
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    Still Surging and Bogging: What do I check next?

    2005 RXT 4-TEC 215HP 188 hours. Surging and bogging throughout the entire throttle range. Fuel tank has been drained, both fuel filters (2) have been replaced, and fresh high-test gasoline is being used. It's still surging and bogging. Next, new spark plugs will be installed. My question is: If it still surges and bogs after new spark plugs are installed, then what do I look at next in order to resolve the problem? Thanks for your help.

  2. #2

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    Have you replaced the map sensor....I've seen them get water in them and act crazy weird....

  3. #3
    Plugs

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  5. #4
    Myself's Avatar
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    First thing I would do is pressure test the intercooler.


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