I am really getting mad. Last week I had to replace my fan belt because my 300 ate it. Bought a new one for 24 bucks and today I herd it eat it again. Looked under the hood and sure enough it skipped the grooves and the fan ate the front half of my belt and broke my coolant reservore lid. What could be my problem. every thing looks like it is lined up. and it only skipps on the power steering and A/C compresser pullies.

 

Is everything stock? Make sure the Fan clutch is screwed all the way on. Maybe your tensioner is shot. It is hard for that belt to come out of those grooves. I"m guessing tensioner.

 

And I'd bet you are right

Steve

 

I dont know. How much tension should it have . when i push down on the belt it barly flexes

 

It's not how much tension, it's how straight is the pulley running.
I have had to replace two in the past week, one on a F-150 4.9L and one on a Chrysler mini van.

Steve

 

What do you mean my how strait it is running?

 

The bearing goes bad in the pulley, letting the pulley run at an angle and blow off belts. Usually they get noisey before they start throwing belts. The only thing I know of, that will throw a belt (surpentine sp?) is a misaligned pulley.

Steve

 

Thanks for the help

 

Check your water pump pulley by trying to move your fan front to back when the belt is removed (no tension). I just replaced my water pump because I had plus/minus 1/4" of angular play on the water pump bearings and I destroyed a serp belt in the process. Now the belt chirping and self destruction are gone.

 

I just put a brand new water pump on last friday

 

If the power steering pump pulle isn't lined up it will do it too. It slides in and out on the shaft with a special puller. Probably the tensioner though if it started all of the sudden.

 

If the pulley moves in and out a little with the belt off dose that mean it is bad. I started it and the pulley ran strait.

 

You might want to check and spin the pulleys for excessive wobble.

Check for sharp edges on the pulley grooves and try to remove and clean any material lodged in the grooves. I use brake cleaner or throttle body cleaner and clean the pulleys prior to installing the serpentine belt.

 

The power steering pulley will move in and out a little bit if you push/pull on it with the belt off. A little bit is OK but it settles in one place when it runs.

Brake cleaner is great to get rid of crap on the pullies.

 

If you changed the water pump, that means you had to remove the pulley and reinstall it on the new pump. I just did the same thing and noticed that the pulley fits tightly on the water pump shaft. I mean that when I tightened the four screws, I had to tighten each one a little at a time, to keep the pulley from getting jambed at an angle before the bolts were all seated and torqued. Double check the pulley, make sure all bolts are in as far as they can go, and the pulley is fully seated against the face of the pump shaft. You may even be stuck an eighth inch off the pump, but not at an angle, did you look behind the pulley to make sure it was flat against the water pump shaft face?

If you did nothing but change the water pump, and the problem didn't exist previously, then keep looking at the water pump pulley.

Of course, no matter what you do to the accessories you have to loosen the tensioner, maybe something odd happened to it just by wrenching it around to remove the original belt.