The tapping noise is pretty much all the time. I've had the car 6 mos. & it didn't do this during the first couple of mos., any ideas what it could be?
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1994 Isuzu Trooper Question: Tapping noise from engine
Answer #1munkyrench September 22, 2009, 21:07Master
Could be an exhaust leak, or something internal. You'll need to have someone look at it and isolate the noise, then determine the cause. That is almost impossible without hearing the noise. Hope this helps, even though I can't offer any solution!
Answer #2imcja October 15, 2009, 15:52Rookie
I can almost guarantee it is a sticky hydraulic lifter or three...this is an inherent issue with the Isuzu 3.2L engine. Mine, a 92, has been tapping away for 125K...recommend an oil change and some oil additive like SeaFoam to quiet it down until the next change. Or you could spend the money to have them replaced.
ReplySugarturbo, October 15, 2009, 18:21Rookie
Thanks a bunch imcja, i'm gunna look into all your suggestions!!