4.6 Engine knock.
Senior Member
Joined: Jul 2009
Posts: 603
Likes: 0
From: Chicago, IL
97-f150 first welcome to the site
to me this sounds like spark knock, what mods have you done if any. do you have a performance programmer or chip. try putting some higher octane gas in it, and see if that helps.
to me this sounds like spark knock, what mods have you done if any. do you have a performance programmer or chip. try putting some higher octane gas in it, and see if that helps.
Technical Article Contributor
Joined: Oct 2006
Posts: 1,770
Likes: 6
From: Michigan
Yours sounds like spark knock ( detonaton). Could be carbon buildup as well. First, as Jimmy suggested try some higher octane and see if it stops.
Last edited by DYNOTECH; Feb 19, 2010 at 05:22 PM.
Thread Starter
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Senior Member
Joined: Apr 2009
Posts: 1,423
Likes: 0
From: Mountain City, North Carolina
Im good to go, well kinda. Its not a knock, its not a blet or anything. Its either A) My water pump is bad or B) My fan might be touching lightly on something.