Mechanics

LOUD ENGINE KNOCK COULD THIS BE THE EGR VALVE OR THE PCV VALVE CAUSING THE KNOCK?\

1996 Isuzu Trooper • 180,000 miles

Knocking all the time on start up
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Ribbo
April 24, 2012.




You mean it runs rough or just makes knocking noise? I bad miss can make a knocking sound or some part internally has failed. Hard to judge on net. Does it knock worse when driven?

Tiny
Fixitmr
Apr 24, 2012.


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