Intermittent squealing when starting truck

RIVERS42

MEMBER
2001 NISSAN XTERRA
4WD
AUTOMATIC
180,000 MILES

When I start up my truck it starts squealing immediately but sometimes when I crank up my truck it won't squeal at all. Also sometimes not often but when I come to a full stop and sit there for like 15 seconds it will start to squeal, but it's not very often that it happens.

5 Replies

ASEMASTER6371

MECHANIC
52,797 POSTS

Good evening,

This sounds like the drive belt or the tensioner not keeping the belt tight.

https://www.2carpros.com/articles/how-a-serpentine-belt-works

https://www.2carpros.com/articles/replace-serpentine-belt

https://www.2carpros.com/articles/how-a-serpentine-belt-tensioner-works

https://www.2carpros.com/articles/serpentine-belt-tensioner-replacement

I would replace both the belt and tensioner.

Roy

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Friday, January 15th, 2021 AT 2:51 PM

RIVERS42

MEMBER
3 POSTS

Okay, see it initially started a couple months ago after I changed the alternator but for some reason I didn't inspect the belt while I had it off.
Would it still squeal if the belt was too tight?

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Friday, January 15th, 2021 AT 3:06 PM

ASEMASTER6371

MECHANIC
52,797 POSTS

No, it would not. Only if it is loose.

Roy

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Friday, January 15th, 2021 AT 3:23 PM

RIVERS42

MEMBER
3 POSTS

Okay, thanks. I really appreciate it and I have a v belt system. Would you suggest just changing the one that goes to the alternator or changing all 3 of them?

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Friday, January 15th, 2021 AT 4:02 PM

ASEMASTER6371