The 3.1 engines are common for an intake manifold gasket leak. You need to get his fixed. If your luckier it is leaking externally and not internally as it can ruin the engine.
Best bet is get it pressure tested at a shop and have them verify the leak before something more serious happens. There are a variety of possibilities and you don't want to change things on heresay.
IF you want to do some checking yourself, I can try to guide you through some possiblilities.
Thursday, March 6th, 2008 AT 8:49 PM