High pitched screeching sound?

volvlife · Post by **volvlife** » 16 Dec 2022, 13:43

My 2007 XC70 is coming up on 100k miles soon and it's getting colder here in the northeast. Yesterday I was driving the car in the snow and I hear this really loud high pitched screeching noise coming from the front of the car (see attached video). I stopped the car and after remaining idle for a few seconds the sound went away. I continued driving and the sound happened to come on again after a few minutes, but very infrequently. Any idea what this could be?

Kind regards,
C

Post by **br0dy519** » 16 Dec 2022, 17:42

Sounds like possibly the blower motor. Common issue. Easy to diagnose, turn off the fan and see if it goes away.

Buy a TYC if you're cheap like prwood and myself.

user17600 · Post by **user17600** » 18 Dec 2022, 16:57

Search for "rain squeal". Yours sounds like a classic case.

Post by **vtl** » 19 Dec 2022, 06:12

https://www.fcpeuro.com/products/volvo- ... t-30793794

: open-uri20141204-20344-uriqvd.jpeg (36.36 KiB) Viewed 916 times

Post by **vtl** » 19 Dec 2022, 07:03

Also, if you leave the pavement, I'd suggest doing the next mod to the bracket:

motormikeyman · Post by **motormikeyman** » 20 Dec 2022, 11:01

Have you ever had the PCV system serviced? That can make a sound like this when it is getting blocked up.