Belt squeel i cant get rid of

[mtuboi86]

Hey all... I have the same problem with my explorer.
Unfortunately I don't have the time nor equipment to take everything off and sand blast it to fix the problem

When the engine is cold, something squeals like crazy, but is fine once the engine is warm.
I've replaced the Tensioner pulley, and the idler pulley, as they're cheap and easy. Didn't do anything.

I put my ear around listening to try and figure out where the noise was coming from, and it was loudest directly over my Coil pack (or w/e it is that the spark plug wires plug into). My assumption is it's just reverberating to that location, but i don't know.

I have a '94 explorer with 188k+ miles on it.
Trying to get it ready for winter, cuz up here it'll be here in 3-4 weeks.

This squeal has been like this for the last two years (about 10k miles), it's just to the point now that when the engine is 70-80 (F) degrees (whatever it is outside), it starts squealing. When it first started, it only squealed below ~35 (F) degrees outside.

I haven't had any electrical charging issues, so I don't THINK it is the alternator, though it does look original to the vehicle.

TIA,
-Ryan

 

[Spdrcer34]

If it's not your Tensioner Pulley or your Idler Pulley I would look at the Alternator, or the Water Pump.

But I would still say it is one of the ones you have already replaced.

Ryan

 

[mtuboi86]

I replaced the idler today and the tensioner pulley, and the same squeal was there.

The engine still runs cool, so how would I go about seeing if it's the water pump?