It may be a split, torn or extreamly hard rubber hose. This is hard to find but you need to check each hose. I have attached some vacuum hose charts for you.
The valve cover leaks. Gently tighten - sometimes they just get lose. If that doesn't work then you will have to change the gasket. Also note that the bolts are not reusable.
Also you didn't specify if your model was an LE, SD, or SE so I gave you the information for a LE
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Saturday, November 3rd, 2012 AT 3:29 PM