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I noticed under my hood that a piece looks corroded through. My car hasn't given any warnings or check engine lights and no liquid is coming through. No one I ask knows what it is. Please help!

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1 Answer 1

Looks like a check valve for the evaporative emissions system. Hard plastic tubing and the solenoid valve on the left side are strong clues for me.

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I believe you're right. Doing a google search for check valve I found this which looks very similar. Thanks! vorwerkauto.com/audi/a4/1996-2001-b5/… –  Chris Jul 18 '12 at 21:14

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