When you're checking the little rubber stubs on the ends of the vacuum lines, just bend it 90° and look for cracks (buy tubing before hand). Also, if the stub comes off easy, replace it (even if it's not cracking).

Good Luck!

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It is a truism that almost any sect, cult, or religion will legislate its creed into law if it acquires the political power to do so. Robert A. Heinlein


09 Jetta TDI
1985 300D