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2007 Jeep Grand Cherokee Question: 07 jeep 5.7 hemi ticking/tapping sound, 50k miles how to repair and cost?



nvguy, Henderson, NV, December 09, 2011, 12:55

engine is making a ticking/tapping sound when stoped, runs good at all speads, sound is pissing me off at stop.

3 Answers
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  • Answer #1

    patrick mannion from Greg Solow's Engine Room, December 09, 2011, 14:58

    I show two engines both use hydraulic self adjusting lifters. It's hard to guess what the noise is without hearing it first hand but it sounds like a hydraulic lifter may be failing. Check the oil level, use an oil with high detergancy, add a quart of Risoline to attempt to clean out the lifters and make sure you have a correct light weight grade of oil in the engine.
    Get it checked out could be a sign of an oil flow restriction in the engine but could be as simple as an exhaust manifold or gasket leak.

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  • Answer #2

    December 09, 2011, 15:25

    Those HEMI engines always had this problem. It is normal sound. That is not just me saying this. http://www.chargerforums.com/forums/archive/index.php/t-3069.html

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  • Answer #3

    Greg's Orange Auto (15188 Answers) , Orange, CA - (714) 361-9386
    globalhelper December 09, 2011, 15:58

    i agree with pat and iv had several of these with very small exhaust leaks. i rec you change the manifold if it is leaking. they are cheap and slightly more than just resurfacing them

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