POSITIVE CRANKCASE VENTILATION SYSTEM-PCV VALVE/FILTER

2001 Volkswagen Golf

Tiny

ajwalt

April, 10, 2011 AT 9:06 AM

Where do I find the positive crankcase ventilation system-PCV valve/filter?

1 Answer

Tiny

exovcds

March, 12, 2012 AT 12:21 AM

I know this is an old post, but in case someone else is reading this.

On 2 liter engines, the crankcase is vented directly from the oil filler
cap/housing to the intake tube ahead of the throttle body.

You will see a hose that runs from the oil filler housing to the
intake tube.

At the intake tube, there is a PCV heater valve that incorporates an
oil separator. That has a vacuum hose attached to it.

On 1.8T engines, the PCV plumbing is more involved and incorporates
a couple one-way check valves as well as a "suction Jet pump" to
direct & control PCV fumes to the intake hose ahead of the turbo.

Thomas

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