I recently purchased a 2004 Dodge Stratus with the 2.7 motor.

I read on MSN a couple days ago that this particular motor has periodic
timing chain and chain guide problems.

I visited with a mechanic today about this problem.

He said that actually the problem is after so many miles the chain
tensioner collapes which causes the chain and the guides to fall.  This in
turn bends a valve and then the engine needs new heads.

He went on to state that the chain tensioner should be replace at about
50,000 miles.

Has anyone had this problem and is this good advice?