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Old 03-18-2009
Thread Starter
Join Date: Aug 2007
Location: Smithville, MO
Posts: 25
Help Finding Source of Squeeling on Serpentine

I have been listening to a squeeling/chirping noise in the front of my engine for a few months now. I can't take it anymore. If I have to listen to this thing squeel much longer, I am going to lose my mind.

I looked under the hood to try and find the source of the problem (on several occasions). Believe it or not, I can't pinpoint the source. It's loud enough that it sounds like it could be coming from anywhere along the Serpentine Belt.

I took it by a Ford Shop today, and they are going to charge me $95 to figure it out for me...No thanks. I would like to figure this one out myself.

Can someone help me pinpoint where this noise is coming from? Here are some facts that will hopefully help identify the problem.

1. I just replaced the idler arm and serpentine belt about 6 months ago. Unless I did something wrong there, I don't think that's what it is.

2. The screech is louder and more consistent when the engine is cold, and when it is raining/wet outside.

3. Once the engine warms-up, the sound is just every now and again. Not constant.

4. The sound speeds-up while revving the engine or going at high speeds (I know...the serpentine belt is turning faster, so the sound is faster).

5. I don't think it's leaking any water, so I'm pretty sure it's not the Water Pump.

6. The weather here is about 60 degrees right now, so I can't tell whether the air conditioner is working or not...thus I can't rule out the A/C Compressor yet.

Any help identifying the source of this sound so I can get in there and fix it would be greatly appreciated. AC.
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Old 03-18-2009
Igobytwitch's Avatar
Join Date: Oct 2008
Location: Cocoa Beach, Florida
Posts: 504
Get a Gatorback Belt. I had the same problem as you, it's an easy, cheap fix
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Old 03-18-2009
Ciaran's Avatar
Join Date: Sep 2008
Location: Calgary, AB
Posts: 184
New Tensioner Pulley and a Gatorback Belt FTW!!!
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Old 03-18-2009
whippersnapper02's Avatar
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Posts: 7,415
There is no idler arm. There is an idler pulley and the tensionor. Also check your fan clutch.
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Old 03-18-2009
Thread Starter
Join Date: Aug 2007
Location: Smithville, MO
Posts: 25
you're correct. idler pulley and tensioner. that's what i replaced.
what is a gatorbelt and where do i get one? also, i'm not sure my
a/c compressor is kicking on. what if it's that?

based on some of the answers i'm getting here, i'm still pretty confused.

in what order do i try and tackle this stuff? thanks, ac.
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