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BMW 3-Series (E90 E92) Forum
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N52 CCV Test
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| 01-24-2021, 12:45 PM | #1 |
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e91Owner
425
Rep 1,129
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Anyone know of a way to test the crankcase ventilation on an N52 e90? I've had this nagging oil leak that moves around the engine as I seal it up in places indicating to me that it's not venting positive pressure and just shoving oil out of the weakest seals. I'm not just referring to attaching a hose to test the diaphragm on the ccv. Wondering if it's time for a new valve cover.
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