engine knock on 1997 Mitsubishi Eclipse

engines knocks when cold started, then slighty disapates when warmed up, but doesnt go away?

by in Lewiston, ID on September 05, 2010
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2 answers
ANSWER by , September 06, 2010
could be bad.change oil with castrol and add a can of restore treatment.
ANSWER by , September 06, 2010
check with a local shop and see if the engine has timing chain or belt. if it's a chain, sounds like the guides are wore. if a belt, could be stretched causing pre-ignition causing a knocking sound.