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Pvc seems blocked but where?

Help, Advice, Owners' Discussion and DIY Tutorials on S40 and V40. In this forum you'll find S40/V40-specific owners asking and answering questions on maintenance, ownership, repairs, tutorials and almost every do-it-yourself thing you can do to save money owning these Volvos.

1996 - 2004 S40
1996 - 2004 V40

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Joined: Mon Feb 22, 2016 8:23 pm
Year and Model: 2010
Location: Pasadena
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Pvc seems blocked but where?

Post by Nismou20 » Mon Feb 22, 2016 8:42 pm

2010 S40 60k classic symptom of clogged PVC, no vacuum at oil filler when removed with engine run. Just blows air out of it and dipstick hole. I took catch can /filter off engine and found PVC valve within canister to work like it should one way. There is no blockage at mating surfaces. The small hose from going to catch can from front of engine is free of blockage. The rear one from catch can to intake mani feels clogged when I blow into it. Shouldn't this line be free even with engine off cause one of the intake valves would infact be open? What could possibly get blocked here? Am I troubleshooting this proper? Thanks,

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