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1999 Jeep Grand Cherokee Question: Engin knocking or valve tapping

 

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pearson34, 4.0L 6 Cylinder, Tracy, CA, September 12, 2010, 16:39
 Rookie

Engine has tapping noie. sounds like valve lifters

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  • Answer #1

    Johnny Mopar September 13, 2010, 15:12
     Master

    A tapping noise from the engine can be from any number of causes, ie: piston slap (excessive clearence between piston and cylinder wall), lifters, injectors, carbon buildup on piston tops etc. I suggest you take your vehicle to your local repair facility for inspection and diagnosis. here is a link to shops in your area: http://repairpal.com/directory?address=95304&car_bran...

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