what cause the engine to knocking on top of engine
Oct 10, 2008 at 4:00 AM
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2CARPRO JACK
AUTOMOTIVE REPAIR CONTRIBUTOR
11,533 POSTS
Valvetrain noise can be caused by alot of things. Broken valve spring, bad lifter, bad rocker arm.Need to locate which side the noise is coming from and remove the valve cover and give it a good look to see if you can notice anything