August 18, 2008, 1:14 pm
i have a very misterious knocking from my car like a loud tapping appears to be coming from the top. the noise is slower than the engine idle but increces when you rev. it starts up everytime and all of a sudeen just started tapping. does anyone have any ideas or information?
August 19, 2008, 1:49 am
this could be the hydrolic tappits(rattle when oil gets thick) is your car due for an oil change?
August 19, 2008, 7:36 am
it sounds louder than the tappets n it sounds near valves
August 19, 2008, 8:43 am
if th car is high milage it could also be the cam chain tensioners starting to slip as these are made of plastic and ford recomend renewing them at 120000 miles
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