Tensioner pulley squeeking
I have a 06 4.0, after a few months of squeaking at mid - high rpm's I finally took it to my dads shop to get it looked at. His mechanic determined it is the tensioner pulley. I am going to have it fixed this weekend, but as I read online this is a very common problem with the 4.0L. Has anyone on here had this same problem? If so how many times have you replaced it?