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Discussion Starter · #1 ·
Maybe this has been posted before but thought I would share something I found. I was trying to track down a cause for an oil leak into the valley and the best I could tell was that the passenger intake plenum was the area with the freshest looking oily area. I couldn't find a seal, o-ring or loose fitting that would contribute to it until moved the MAP hose coming off the passenger side of the intake Y. This hose is held on by a friction clamp and the hose slid back and forth on the fitting approximately 1/2 inch. I haven't done the CCV yet and so the oily intake pressurized air was blowing out through this losse fitting and leaking around the passenger side plenum. Haven't tested it too much yet but I believe I have a little better boost and hopefully solved a valley oil source.
 
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