by Bodyman on May 6th, 2006

Bodyman

Question

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My 2001 F150 V6 4.2L has bad spark knock. I put good fuel in it, and changed and gapped the spark plugs, even put octane boost, but no help. What could be wrong?

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Answers. 1 helpful answer below.

  • by Bobgardenman on December 28th, 2008

    Bobgardenman

    Check the timing on the engine.

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