Question about 2001 Jeep Grand Cherokee

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Knocking noise. Overheated engine, warped heads, colapesed valve. heads checked, machined to correct warp, replaced 1 valve. Knocking noise present since overheat. Shop pulled valve cover nd replaced all lifters on left side (side with noise) noise got worse. Performance good, mileage same, no smoke. Seems to idle rough and noise is louder when accelerating or increasing rpm in gear with brake.

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  • Anonymous Apr 01, 2014

    seems as if someone had put new intake and heads before I bought it. It knocks and burns a small amount of oil

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Posted on Oct 20, 2010

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