PCV Modification (from another forum)
Rock Crawling
Joined: Oct 2018
Posts: 381
Likes: 109
From: Boiling Springs, SC
PCV valve is the go to solution for 90% of vehicles on the road. Volvo and Disco are the only cars I have ever seen that don't have them. Volvo has a factory breather/catch can system, LR Bosch engine used baffle (garbage). PCV is my preferred as the Volvos also have problems at high mileage.
I have an 03 Volvo XC70 - straight 5 and the pcv/catch system is under the intake manifold with a catch box so to speak - I've replaced it all and its a gigantic PITA.
Replacing the thing in the valve cover with a real pcv valve on the Disco was cake by comparison
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