I just recently purchased a 1996 ford Mustang v6 engine w/86,0000 miles he has a tap in the engine what could that be a a lifter or vales. I have changed oil to high mileage and still have the knock. please email me at bgibson@sai-inc my work address please here til 3:00 pm eastern time . Thanks

 

When do you hear the sound? All the time? Cold/warm engine?

 

is it more of a tick or a knock because there is a difference