Originally Posted by skunk21

I'm betting it's not the belt, the belts are pretty stout and with only 59K doubt highly it is that stretched. My '08 explorer had this same issue brought it to ford since it was still under warranty, my tensioner was no good. The spring that is inside the tensioner wasn't up to par and was allow the belt to slip. they repalced the tensioner & belt and all is good, also some tensioner will bind and slack off and spring back( this is in simple terms) so even though it looks like there is tension sometimes it isn't enough. on a slimer chance it could be a bad pulley something like an idler. check it out further but if the tensioner is going bad a new belt will slip and get wrecked again.

Originally Posted by ginger

I have a 2008 mustang,it's squealing I change the belt it's still making noise,what's wrong,the tension pulley?

Originally Posted by ginger

I have a 2008 mustang,it's squealing I change the belt it's still making noise,what's wrong,the tension pulley?