Hello all,

Just thought I'd share my situation and hopefully receive your thoughts about it.

Couple days ago, hop in the truck to go to work and belt starts squealing. Belt was old and it had been raining, so I figured it was a little wet. Turned on the defrost, and squeal gets worse. I then smell a burning. Opened the hood and saw the belt dragging on the a/c pulley, so I figure the compressor clutch is shot.

Looked at it today. I was wrong. Took off the belt and the a/c pulley spins fine. I can turn it's front hub by hand as well. I look around and see the crankshaft pulley isn't lined up. It looks like the outer pulley portion separated from the rubber. This caused the belt the jump and ride on the rubber part, cutting grooves in it.

Here's some pics:

From top driver's side:


From top passenger's side:


From bottom passenger's side:


Thoughts? Anyone ever experience this? Thanks!

 

Found some info on this. Apparently it's been around for a while. I haven't seen a TSB on it.

4.0 Harmonic Balancer - know when it's going bad & how to fix - Ford Explorer and Ranger Forums "Serious Explorations"®

https://www.ford-trucks.com/forums/1...eaky-belt.html

Any thoughts still appreciated! Thanks!