99 D 5.9l rocker arm noise.
i beleive that its my rocker arms making the noise im hearing. i need to know how to tell which ones it is once i have the valve cover off. plus how to go about replacing them and adjusting them. any help would greatly be apreciated. i am very good at working on engines but this is something i havent done before so i obvously need some direction to not ruin my engine. thanks, leif.