Engin knocking or valve tapping on 1999 Jeep Grand Cherokee

Engine has tapping noie. sounds like valve lifters

by in Tracy, CA on September 12, 2010
1 answer
ANSWER by , September 13, 2010
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_brand_names=Jeep