I Have A 1997 Ford F-150 Flareside Truck. Once Its Warmed Up And Running, (approx 15-20 Minutes) There Is A Squeeling Sound From Under The Hood. Only Does It Once The Truck Is Warmed Up And Only When I Come To A Stop. Squeeling Stops Once Gas Is Applied And Its Moving. Changed The Belt Thinking That Was The Problem But That Wasnt It. I Had A Friend Of Mine Look All Over And Under The Motor And He Seems To Think Its The Torque Converter Squeeling From The Transmission. Nobody Else Known What It Is Or Could Be. Any Other Thoughts/Comments/Instructions? Its More Annoying Than Anything. Help Before I Blow The Damn Thing Up!!

 

I have never heard of T/C squeeling, could be the idler pulley or tensioner pulley. One component at a time put wd-40 on it. When the squeeling stops you know what was making the noise.

 

ok let me break the WD-40 out and see what happens