2008 XC90 squeal in the pulley belt area

lancelyons · Post by **lancelyons** » Tue Nov 12, 2019 9:33 am

Hi, Looking into fixing my daughters 2008 XC90 3.2L. She has a squeal coming from the belt pulley area that essentially goes away when she accelerates and then comes back when she coasts or comes to a stop. Sometimes its not there on a complete stop. I have heard this before with other cars and its always the belt tensioner.

Does this sound correct?

I am looking at doing the work this weekend. here is what I believe I need to do.

After digging into this a bit more I feel that I am able to do this job with about 60 dollars with a parts.

Fischer Tensioner
Idler pulley
Serpentine Belt

will need to remove Intake box and fuse box for more room

19mm wrench on tensioner to remove pressure

loosen A/C compressor and brackets and power steering reservoir to move out of way
disconnect water pump from pulley system to allow new serpentine belt
remove tensioner
remove idler pulley
replace tensioner with pin to lock it in position to not put tension on belt
route new belt in place
refasten A/C compressor and brackets
refasten water pump
install idler pulley

reinstall intake box and fuse box

does that sound about right? missing anything?

wanderdüne · Post by **wanderdüne** » Tue Nov 12, 2019 6:21 pm

I don't have a 3.2, but had seen this on the other forum. See especially post 7.
https://forums.swedespeed.com/showthrea ... d-the-ugly

lancelyons · Post by **lancelyons** » Sat Nov 23, 2019 4:01 pm

This was just the oil trap issue with to much vacuum. Pulled oil fill plug and noise disappears.

I replaced tensioner and idler pulley and it was excessive vacuum and bad oil trap.