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Valve Cover Oil Deflector - squealing noise

A mid-size luxury crossover SUV, the Volvo XC90 made its debut in 2002 at the Detroit Motor Show. Recognized for its safety, practicality, and comfort, the XC90 is a popular vehicle around the world. The XC90 proved to be very popular, and very good for Volvo's sales numbers, since its introduction in model year 2003 (North America).
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gjheis@yahoo.com
Posts: 2
Joined: Thu Nov 02, 2017 8:35 am
Year and Model: 2010 XC90 3.2
Location: Columbus Ohio

Valve Cover Oil Deflector - squealing noise

Post by gjheis@yahoo.com »

Hello Volvo brains! My XC90 3.2 is engine is squealing due to failure of the Valve Cover Oil Deflector. I think this is a pretty common issue, but can find much on the subject.

My question is, should I replace the entire deflector assembly with the gasket? Or just the gasket? I understand Volvo recommend replacing the deflector every 100K miles and there was an extended warranty on this issue at some point.

Thanks for your input.

Resources:
Similiar issue here:
viewtopic.php?t=63820

Whole part:
https://www.amazon.com/gp/product/B00NT ... b76fd93d80

Just gasket:
https://www.amazon.com/gp/product/B00L2 ... D7Q7&psc=1

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ggleavitt
Posts: 444
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Year and Model: XC90 06-VOR, 08-SPRT
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Post by ggleavitt »

Other links- http://forums.swedespeed.com/showthread ... ost2878257 and http://forums.swedespeed.com/showthread ... -Box-Noise and

Not seeing the diaphragm sold separately, likely only option is to replace the oil trap/breather box (PN 31319642) and gasket (PN 30731243). I'll update this post if I can find the diaphragm separately.
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Masscomguru
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Post by Masscomguru »

It's actually the diaphragm in the PCV (round valve on top). You need to replace the whole box. It is also referred to as the AirBox by some dealers.

jimmy57
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Post by jimmy57 »

There is an ebay seller selling the diaphragm only.

item 172267660060

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ggleavitt
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Post by ggleavitt »

^^^ Excellent, thanks for noting! ^^^
Last edited by ggleavitt on Fri Nov 03, 2017 3:15 pm, edited 1 time in total.
2006 V8 AWD Ocean Race-136k
2008 V8 AWD Sport-136k

gjheis@yahoo.com
Posts: 2
Joined: Thu Nov 02, 2017 8:35 am
Year and Model: 2010 XC90 3.2
Location: Columbus Ohio

Post by gjheis@yahoo.com »

Thanks everyone. I appreciate the help.

It's going to take a few days to get the parts. Should I completely avoid driving it until it's fixed?

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