belt noise squealing

[sloan2007]

Hey everybody I got a good one for ya. My 2004 dodge ram 1500 4.7l is making a squealing noise only when it hits 1500 rpm and above. Replaced the belt,pulley tensioner with pulleys , and water pump. Tested powersteering pulley it is fine and alternator pulley is in good condition and they are all lined up. I can not figure it out. Please help? thanks.

 

[TexasRammer]

does it happen every time it gets above 1500rpm?

 

[Bergerman]

What brand belt did you put on?

 

[sloan2007]

yeah everytime over 1500rpm

 

[sloan2007]

napa brand but I put a dayco belt on and still does the same thing

 

[TexasRammer]

Im not sure dude, I guess all thats left is either the compressor pulley or idler pulley

 

[sloan2007]

Thanks man. I replaced the idler pulley though I guess i could get one of those compressor pulley kits and see if that will work.

 

[TexasRammer]

Yeah that could be it, maybe someone else will chime in... I know I sometimes have a squeal when I get over like 2000rpm after I start it up and I believe its the compressor pulley because it wont happen if I turn the compressor is on

 

[sloan2007]

i forgot to tell ya that it only squeals when its 65 degrees or colder outside weird uhh

 

[Bscanlon64]

Same thing is happening to me. Same temp and everything. Only does it for a few minutes after start up, but yeah anytime you give it gas, it squeals.

 

[SmokedRam]

Take your belt off, and take take a wire brush to all your grooved pulleys, then reinstall the belt and see if it still does it.

 

[sloan2007]

okay smokedram I will give it a try. Thanks

 

[sloan2007]

okay I took my belt off and took a wire brush and cleaned all that crap out off the grooved pulleys and also cleaned the belt now i have to wait until it gets cold again which will be monday and I will see if the squealing is gone. cross fingers

 

[SmokedRam]

Good deal, if the grooves had junk all up in them, the belt was more than likely slipping on the pulleys.

 

[sloan2007]

well it was gone for a day but its squealing again! driving me crazy man

 

[sloan2007]

put some dish washing liquid on the belt and the squealing is gone

 

[SmokedRam]

What brand belt are you using?

 

[sloan2007]

napa v rated belt tried a dayco belt it does the same thing and the dish washing liquid only worked for a couple of days

 

[sloan2007]

Found the problem the dayco pulling was bigger than the factory I put a new napa pulley on and the squeal went away

 

[SmokedRam]

Awesome!