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Loud Noise from Engine

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo XC90s. The XC90 proved to be very popular, and very good for Volvo's sales numbers, since its introduction in model year 2003 (North America).
macytelli
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Loud Noise from Engine

Post by macytelli » Sat Oct 12, 2019 5:32 pm

I am getting a loud noise from the engine area of my 3.2 XC90 2008. It starts low and gets louder the longer you run the engine. It is a high pitch noise. I was thinking maybe the belt but it looks like it is in good shape. I was planning to remove the idler pulley thinking that may be it but wanted to check here first.



Masscomguru
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Re: Loud Noise from Engine

Post by Masscomguru » Sat Oct 12, 2019 7:40 pm

If you pull the dipstick while the engine is running and the noise changes, its the valve cover which is also an integrated PCV air box.



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MoVolvos
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Re: Loud Noise from Engine

Post by MoVolvos » Sat Oct 12, 2019 8:20 pm

-
A possibility?



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BKM

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Re: Loud Noise from Engine

Post by Masscomguru » Sun Oct 13, 2019 6:48 am

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macytelli
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Re: Loud Noise from Engine

Post by macytelli » Sun Oct 13, 2019 4:45 pm

Thanks guys. I think it is the PCV Oil Trap.



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