4.0 engine noise?

boxster

Well-known member
Jun 1, 2009
113
4
Hearing a tapping noise when idling and warm engine appears it’s on drivers side. Could it be lifter or rocker arm? Any ideas appreciated.
 

XCELLER8

Well-known member
Sep 21, 2009
226
2
go ugly early....remove the valve cover and let it run( obviuosly you'll have to remove the plenum and reinstall it).......you wont get much oil spray .and the noise will be easier to pinpoint......likely its one of the steel inserts coming loose in a rocker arm...been there