Pcv issue I think

dazbooker · Dec 16th, 2018, 12:42

I replaced the pcv system about 47000 miles ago
I've noticed oil dripping from the inlet tube were it clamps to the turbo
The turbo is not that old
I tested the pcv with the glove
On tickover when warm the glove blows up a little but not much
When I rev it it sucks in slightly then when I let off it blows up more than tickover and settles down to were it blows up a little bit but not much
Is this normal or do I have a pcv issue or could it be the valve on the inlet tube
I tend to do short journeys about 20 minutes each way to work and back and I change oil every 5000 miles

Cookeh · Dec 16th, 2018, 14:08

It's a PCV issue.

dazbooker · Dec 16th, 2018, 14:54

Would it have gone faulty after 47000 miles

Cookeh · Dec 16th, 2018, 16:01

Not necessarily, but its certainly possible if you didn't use genuine parts or you didn't replace the flame/oil trap.

If you really want longevity out of it (though you should get double that ordinarily) then one of the users, I believe its CNGBiFuel or similar, has a post in the "Standard Faults/Killers" topic on this forum on 'upgrading' the PCV system.

dazbooker · Dec 16th, 2018, 16:09

They were genuine parts
I also replaced the oil separate canister at same time

dazbooker · Dec 16th, 2018, 16:11

Do you have a link to the post you were referring to

byootox · Dec 16th, 2018, 21:13

The PCV system is a bit unusual on these.
There is 2 ports in the front of the block on them.
The top port isn't normally a problem but the lower is mainly to allow the oil trap to return oil to the sump, this one on the other hand can be prone to getting blocked, well worth checking this one is cleared.
Lots of posts about this on here over the years.
They also have small hole for the breather at the main intake hose where the breather pipe terminates that can be blocked as well.
Seems to affect 850s more than v70s that I've come across
The glove test over the cap is fine for the top end of the engine but it's also worth doing over the dipstick tube as well to check the bottom end of the engine.

dazbooker · Dec 16th, 2018, 21:26

Weres the small hole on the breather pipe that your referring to
Is it the one on the valve
Also there is a little fumes out of the dipstick when you pull it out

Dec 16th, 2018, 12:42	#1
dazbooker Senior Member Last Online: Apr 13th, 2024 08:50 Join Date: Jan 2014 Location: barnsley	Pcv issue I think I replaced the pcv system about 47000 miles ago I've noticed oil dripping from the inlet tube were it clamps to the turbo The turbo is not that old I tested the pcv with the glove On tickover when warm the glove blows up a little but not much When I rev it it sucks in slightly then when I let off it blows up more than tickover and settles down to were it blows up a little bit but not much Is this normal or do I have a pcv issue or could it be the valve on the inlet tube I tend to do short journeys about 20 minutes each way to work and back and I change oil every 5000 miles

Dec 16th, 2018, 14:08	#2
Cookeh Premier Member Last Online: Sep 14th, 2022 17:04 Join Date: Jan 2018 Location: Derbyshire	It's a PCV issue. __________________ 1995 Volvo 850 T5 Estate (Manual)

Dec 16th, 2018, 16:01	#4
Cookeh Premier Member Last Online: Sep 14th, 2022 17:04 Join Date: Jan 2018 Location: Derbyshire	Not necessarily, but its certainly possible if you didn't use genuine parts or you didn't replace the flame/oil trap. If you really want longevity out of it (though you should get double that ordinarily) then one of the users, I believe its CNGBiFuel or similar, has a post in the "Standard Faults/Killers" topic on this forum on 'upgrading' the PCV system. __________________ 1995 Volvo 850 T5 Estate (Manual)

Dec 16th, 2018, 21:13	#7
byootox Premier Member Last Online: Dec 20th, 2021 23:22 Join Date: Oct 2012 Location: Edinburgh	The PCV system is a bit unusual on these. There is 2 ports in the front of the block on them. The top port isn't normally a problem but the lower is mainly to allow the oil trap to return oil to the sump, this one on the other hand can be prone to getting blocked, well worth checking this one is cleared. Lots of posts about this on here over the years. They also have small hole for the breather at the main intake hose where the breather pipe terminates that can be blocked as well. Seems to affect 850s more than v70s that I've come across The glove test over the cap is fine for the top end of the engine but it's also worth doing over the dipstick tube as well to check the bottom end of the engine. __________________ 99 V70 T5 Last edited by byootox; Dec 16th, 2018 at 21:17.

Dec 16th, 2018, 21:26	#8
dazbooker Senior Member Last Online: Apr 13th, 2024 08:50 Join Date: Jan 2014 Location: barnsley	Weres the small hole on the breather pipe that your referring to Is it the one on the valve Also there is a little fumes out of the dipstick when you pull it out Last edited by dazbooker; Dec 16th, 2018 at 21:34.

Dec 16th, 2018, 14:54	#3
dazbooker Senior Member Last Online: Apr 13th, 2024 08:50 Join Date: Jan 2014 Location: barnsley	Would it have gone faulty after 47000 miles

Dec 16th, 2018, 16:09	#5
dazbooker Senior Member Last Online: Apr 13th, 2024 08:50 Join Date: Jan 2014 Location: barnsley	They were genuine parts I also replaced the oil separate canister at same time

Dec 16th, 2018, 16:11	#6
dazbooker Senior Member Last Online: Apr 13th, 2024 08:50 Join Date: Jan 2014 Location: barnsley	Do you have a link to the post you were referring to

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