2003 V70 Squealing Noise Related to Crankcase Vacuum

[barmaleikin]

same on mine 2005 2.4 non turbo broken diaphragm . unit was clean only 115k mile but diaphragm was cut open creating extra vacuum in engine head.

[abscate]

Yikes, that is horribly coked up.

[Headsup]

Interesting reading this thread- had the same squealing noise for a few years now.
However, no issue with oil changing colour between oil changes, oil spraying or poor performance- just the annoying squealing.
After reading this thread, I did, however, give a little tug on the dipstick, and sure enough there was suction pressure, and then the car started to idle roughly. Similar to the two queries I recently posted, I seem to just becoming accepting of the fact that a 2001 extremely faithful vehicle with almost 500,000 k on it might not last for ever. It's status recently changed from "main" car to "winter beater".
Certainly, with-out a great deal of insight and advice from this forum, it may have gone to the bone yard some time ago!

[BavarianSweed]

Very helpful! Pointed right where my problem was. Regarding replacement dyaphram only, the VW 2.5 peze i5 has a similar vent system and the dyaphram looks identical. I was able to pick one up for around $15. The package included the dyaphram and snap on single use cover for the valve housing.

[BavarianSweed]

Available at Parts Geek, Rock Auto etc. The cover is not compatible however as far as I can tell the dyaphram is.

[chrism]

Bavarian Speed,
How did you seal the housing back up after installing the new diaphragm?