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Thread: 99 Windstar valve knock

  1. #1

    99 Windstar valve knock

    Any idea why I have no codes, and I get valve knock something fierce if I run less than super?

  2. #2
    Check for vacuum leaks and the mass air meter may need cleaned. Sometimes carbon can build up and cause issues and seafoam can help that. Also I have seen a malfunctioning egr valve cause it.
    http://www.streetlethalperformance.net
    Let us know your parts needs! We will work to get you the lowest possible price!

  3. #3
    Thanks!

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