When I'm at a stop and push in on the gas I hear a squeal.. As well as when I turn my truck off I hear a squeal.. Any idea what this is?

 

tensioner maybe?

 

Maybe also be the idler, both compleat lay locked up on mine this weekend

 

I'm gonna take the belt off in a few minutes and see if I can find the culprit

 

Just through a new serpentine belt on and it's find now... Noisiest damn belt I've ever had on a truck

 

My 1990 ford f150 squeals for some odd reason, it does it when I turn my truck on. I replaced the water pump and the belt and the tensioner but it still squeals!

 

It could be the bearing going out of one if tour pulleys..air conditioner,alternator, or maybe power steering pump...it's just my input..it's a possibility.. good luck...

 

Come to find out I was putting the tensioner on wrong. I wasn't putting it on back wards, you able to move it left or right because the little just gives it enough room for you to move it before you tighten it I had it as for left as it would go and it seqeuled a lot but when I moved it as far right And thighten it up it does not sequel at all. But I do need to replace my power steering and alternator

 

Mines back to squeeling again but doesn't squeel all the time..

 

Mine squeals when it gets wet and when its cold out. I've replaced the belt twice and it still does it, but if I put a dab of dielectric grease on the belt it shuts it up for a few days.