[DarthSurplus]

At idle, from outside the vehicle, I sometimes think I'm hearing a noise like a squeaking idler pulley from my 6.0. It's tough to be sure because of all the diesel racket.

Is there an idler pulley or two that are known to be short-lived on six-liters?

Is the 6.0 an engine that "just makes that noise," similar to the Chevy 350 whistle?

5 years, 58,000 miles. Original accessory drive belts.

 

[DarthSurplus]

Bump ttt

 

[2004fx4]

Bump ttt

My 04 just started this. I have 44,000 miles on mine. I started it the other day and quick went in the house and I heard it. It went away when it was warm. I thought that maybe I heard it because I was on the outside of the truck. The next day when I started it I could hear it in the inside of the truck. Now today I did not hear it at all. My dad's 01 ranger does the same thing.

 

[1NiceHarley]

Old thread, yes. but same problem. I have a squeak but it comes and goes. Some times soft I can only hear it when I walk in front of the truck sometimes I can hear it in the cab. I replaced the belt about 3k miles ago but problem still shows up. It shows up more when it is wet/damp outside. Truck sitting still or driving.
2004 Excursion 6.0L 2wd.
Any ideas on which pulley is most likely the culprit? the tensioner seems to have good tension.
Thanks in advance!
Troy

 

[ploogs]

Do a search on belt squeal. From what I found the water pump pulley can cause this. I think there's an updated pulley available. I've had this problem for the past year including replacing the belt and it's still there, although worse in the winter. I'll get it looked at eventually.

 

[ufxnow]

My 06 had a squeal when cold. Dealership replaced the ps pump and pulley(not sure if they come together) and belt as per a tsb. I don't have the tsb listed on receipt. Not sure if this will help.

Scott

 

[compton23]

these trucks always do this. i have had all pullyes replace and it comes back. i have noticed the trucks with the 20' wheels do it more. the power steering pumps start to go bad frome turning the biggers size tires. they replaced mine one the problems went away. but two years later same thing so its going back in for work. dont use belt dressing it makes it worse. use some chalk it will go away for a couple of weeks. when it gets wet it will come back. oh yeah you can change your belt but it will come back.

 

[lenzhotrod]

There was a TSB on this for both belts and cracking pulleys.If I can find I will post.

 

[lenzhotrod]

Here it is!!!

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