Hack
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- Nov 26, 2014
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That's right. If you have enough blowby to pressurize the crankcase, your air/oil separators will fill quickly and your engine will be down on power.There shouldn’t be any pressure in the oil pan unless both the PCV and the tube on the air filter side (from the driver’s side valve cover) are both blocked. In fact, there should be a slight vacuum in the crankcase caused by the PCV system (if working properly).
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