by David
(Killeen, TX)

I hear rattling from under the hood when in idle. Not sure what it could be.

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Jan 28, 2013
could be serious
by: Anonymous

Try tightening the nut on top of your air cleaner. They are notorious for working loose and rattling. A rattle can also come from your engine. Valve noise is serious and should be checked out. If a rocker arm fails or a valve spring breaks you could experience pushrod failure and subsequent piston damage.

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