Thread: Vacuum pump differences
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Old 01-09-2013, 10:26 PM
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NC-Diesel NC-Diesel is offline
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I have cars with both and have wondered this myself.... Although I think with it being a vacuum pump the air is pulled from the vacuum lines and exhausted to the air cleaner. So it may make sense if they exhaust the air to the block where it could get PCV'd back into the intake without an extra hose...
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