My serpentine belt makes a terrible noise all the time now. My truck only has 2000 miles on it. (2007 6.0).

It started intermittently at around 500 miles.

I sprayed a mist of wd-40 on the belt to see if it was truely the belt and not a bearing going bad. It stopped immediately, so it is the belt. Noise comes back later of course.

I've recently tried a belt dressing. Only stops the squeal for a few miles.

This noise is so irritating, especially in a brand new truck!

Any suggestions? Think they will cover it under warranty?

 

With only that many miles should be under warrenty. Unless they know that you used wd40 or belt dressing.

 

my 06 had the same problem, they replaced the belt under warranty at 9500 miles

 

Ditto....

Belt sttreched or something is out of alignment... either way it is covered.

 

I had a bad belt on my new 07 F-350 too. At 1000 miles I noticed "fraying" on the belt but only in on 5" section. That told me it was the belt and not pulley problems. In my mind if one or more pulleys would have had a bad spot on them, the entire lenght of the bed would have went bad. Note: I did not have any belt noise prior to noticing the problem. Replaced under warranty.

 

mine squeaks when it is cold but once it warms up,...no more squeak??Seems wierd to me.

 

that is exactly what mine was doing, cold squeek, warm no squeek.
it took the idiots at the dealership three days to figure it out and they replaced the serpentine belt.
it hasn't happened since the belt replacement, but it was strange that it was just the belt. if it comes back I'll post about it.

 

Sounds as if they had a bad batch of belts.

 

Same thing on my 07'. Built in early Dec.

 

They are notorious for this cold "belt squeek" and I have not yet heard a good explanation of why....Anyone???????

 

they replaced the belt twice on my 06, the second time was the belt and the tensioner, then the noise went away

 

Squeak is there to let us know the truck is still Running! Ha.Ha. Mine has it too, just when cold.. Have to take it in to get it corrected.

 

my truck is doing the same cold or warm, I will change the belt

 

talk about coincedence, I just read this thread and this morning noticed my belt or tensioner making a squealunitl warmed up then. 7700 miles on an '06. How long does it take to change belt/tensioner?

 

it took my dealer 3 days. hopefully yours will be quicker. it should take about 2-3 hours at the most.