05 3500 w/ 50000miles. there is a noise in the motor at the top. like under the valve cover. i had injector replaced by the dealer. dont know much about diesel , so if anybody has an idea thanks. sounds like a rocker kind of.
thanks
brian

 

Maybe they didn' adjust the valve clearance properly.

 

anybody know the specs.
thanks
brian

 

Intake= .010 inch
Exhaust= .020 inch

Adjust when engine is cold.

 

thanks guys