Question about 2001 Jeep Grand Cherokee

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I have a loud tapping valve can i use an additiveto fix problem

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If you have a hydraulic lifter that is sticking, sometimes marvel oil or lucas engine additive will help. If the noise is caused by wear at the rocker pivot or the lifter/camshaft, it will not. No chemical can replace a worn part.

Posted on Aug 02, 2010

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