PCV Check valves

C1ph3r · Post by **C1ph3r** » 11 Oct 2023, 13:24

99 V70 T5 - So when I did the PCV overhaul last year I didn’t do the Evaporative Emissions Hose from Volvo with the 2 little white check valves. That hose is crazy expensive so I just replaced the rubber parts. Are those little white valves something that can be replaced with a more universal check valve? Wondering if I need to replace it.

: Here’s a screen shot of the hose from FCP; IMG_3279.jpeg (86.3 KiB) Viewed 349 times

Post by **scot850** » 11 Oct 2023, 16:55

While still expensive, the part is way cheaper from Tasca at around $85 US, v's FCP @ $118.

I am not sure if those small valves are available separately. I would have thought so, but I'll need to check.

Is this the valve you are looking for:

https://www.ebay.ca/itm/204136768968?ch ... 9hEALw_wcB

Neil.

Post by **abscate** » 11 Oct 2023, 18:18

Just test them by blowing into them

White to black , air flow

Black to white, no flow

C1ph3r · Post by **C1ph3r** » 11 Oct 2023, 18:42

thanks guys. mine are all one color. I did do the blow test when i replaced all the rubber line when I did the PCV system.

not sure if those linked to are the same but seems to me a one way check valve is a one way check valve. I may look into those linked to.

After shipping its only $7 less from Tasca. Might as well get it from FCP if I do when I order all the other mess I need.

thanks,
A.W.