POSITIVE CRANKCASE VENTILATION SYSTEM-PCV VALVE/FILTER

  • Tiny
  • ajwalt
  • 2001 Volkswagen Golf
  • 4 CYL
  • FWD
  • manual
  • 150,724 miles

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

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Sunday, April 10th, 2011 AT 9:06 AM

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  • Tiny
  • exovcds
  • Member

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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Monday, March 12th, 2012 AT 12:21 AM

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