Northstar Engines and System Technical Discussion Discussion, tapping sound in Cadillac Engine Discussion; My 2003 deville makes a tapping noise is there anything to b done and should I worry. And yes I ...
Automobile(s): 2002.5 F55 STS, 2014 Explorer XLT 4WD
MD Eastern Shore
Re: tapping sound
Very difficult to diagnose a "tapping noise" with no additional info. Are you able to post a video with sound ??? There are so many possibilities for "taps" or "knocks" in an engine that it takes sound, speed, location, and experience to even begin, and each component makes a different noise under normal or failing conditions.
Any clue as to where, what frequency (engine speed or half engine speed), under what conditions the noise occurs ? Did you remove the engine (beauty) cover and snoop for location while the engine is idling ?