2000 Deville Base, 2019 Corvette GS
I am getting a little noise out of the cam pulley area and a friend of mine (good mechanic) says it is just pressed on and there is no bearing on it, any noise you might be hearing is the tensioner or belt. If the pulley is good do not change it, it will make no difference. Here is the cam pulley, although old it is not damaged. So I'm thinking just change the tensioner and belt as it is inexpensive.