Serpentine belt slipping on the AC only?

[javacontour]

Originally Posted By: badtlc
I got an Escape (2007 XLS) and when it is warm under the hood and it gets started, the belt and AC make noise when the ATX is put in Revers or Drive. Once it drives a few hundred feet the noise goes away.

The belt looks fine. Would some sort of non-stick spray work for this?


Let me see if I understand.

You tell us this, and then you tell us we are wrong.

Our web based diagnosis is only as good as the information given

On a more serious note, I'm glad you've figured it out.

 

[badtlc]

Originally Posted By: javacontour
Originally Posted By: badtlc
I got an Escape (2007 XLS) and when it is warm under the hood and it gets started, the belt and AC make noise when the ATX is put in Revers or Drive. Once it drives a few hundred feet the noise goes away.

The belt looks fine. Would some sort of non-stick spray work for this?


Let me see if I understand.

You tell us this, and then you tell us we are wrong.

Our web based diagnosis is only as good as the information given

On a more serious note, I'm glad you've figured it out.


Yeah, sad thing is everything I said was related.

When the engine mounts get saturated with heat (from sitting the sun or garage after a drive), they soften up. That combined with the extra torque applied to the belt from being in Reverse and the AC kicking on is enough to make the mounts give to the point where the alignment changes enough for the belt to start making noise.

Crazy stuff. Sort of a "perfect storm."