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2006 Ford Explorer knocking noise when cold.

The noise seems to be behind the radiator.Knocks when temps are below 15. Took it in to be fixed it wasnt doing it. Brought it home it stated again.

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  • Marvin
    Marvin May 11, 2010

    what engine do you have 4.0L SOHC?



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Sounds like the internal timing chain tensioner

Posted on Jan 26, 2009


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1 Answer

When it's cold out (sub 15 deg F) and I start the car, there are about 5 loud knocks from the engine compartment. Changed tensioner and belt, that didn't fix the problem. Ideas?

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