1997 Ford Explorer Squealing/Squeaking Noise

Noises problem
1997 Ford Explorer Automatic

Here's my problem: 2 weeks ago, I went to get a regular oil change. One of the mechanics told me I needed a new serpentine belt, and they showed me the current one, and it looked in pretty bad shape, like kinda ripped up and torn and stuff, so I agreed and they put the new one in. So come the next day in the morning when I start my truck it is making the loudest squealing/squeaking noise ever and when I accelerate, it gets even louder. It is so embarrasing now just to have to start and drive my truck! So I went to Firestone to try to see what was the problem, and they told me that the mechanics at Jiffy Lube spilled some kind of liquid like belt dressing, oil, etc all over the pulleys, belts, other parts, etc. So the firestone mechanics said they would clean it and also they needed to replace the belt again cuz the belt had the stuff all over it too. So since they have replaced the belt and cleaned the pulleys and stuff, the sound is way way less noisy, but it is still there, and still a nuisance of course. I would like to get rid of it completley and have it drive quietly like it has been since March 2006 when I purchased my truck.

If I get all the pulleys replaced with new ones, do you think that will do the trick in getting rid of the squealing/squeaking? I have a good bet it will, seeing that replacing the belt made the noise way less. So I'm assuming since the pulleys and the belts are always in contact, that replacing the pulleys also will eliminate the noise compeltley. Please let me know what you guys think, thanks for your help!



Tommy