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PCV Service S80 2005

Yes, when the turbo is engaged, the intake manifold goes from negative pressure to positive. This explains the need for the PTC.

You also need to check every vacuum line and nipple going into the manifold. Don't forget the vacuum lines for the boost controller. The older engines had a vacuum line going from the cylinder #1 area, this also tended to fall apart and is very hard to find.
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My name is Klaus and I am a V♂lv♂holic






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