Mechanics

KNOCKING SOUND

1984 Chevrolet Custom Deluxe • 6 cylinder 2WD Manual • 99,000 miles

I need help diagnosing a knocking sound in my Chevrolet 250cu 4.1L. I have tried pulling spark plug caps to determine if it is in one of the cylinders thinking it could be a wrist pin and this had no effect on the noise. The sound comes from deep in the engine. The knock keeps time with the engine.
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XxxNAVYxxx
January 10, 2011.




I Am restoring this truck and this is my next step so please help I would really appreciate it

Tiny
XxxNAVYxxx
Jan 10, 2011.


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