Perhaps it is your pcv valve or rubber elbow connector that is hooked up to the pcv valve.
in the front of the engine on the right side of the engine. next to the plenum. you will see a black hose that leads into a small metal valve that screws to the engind. if you pull the hose off you can remove it with a deepwell socket. not your average looking pcv valve.
The PCV valve is located in the valve cover
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the pcv valve is located on top of the valve cover
The PCV valve is located on top of the valve cover in the middle.
Just below throttle body, it fits onto a breather pipe runs from the valve cover routing under the intake manifold. A small pipe connects the pcv to the intake manifold
Pull upward on the hose that the PCV valve is in. The PCV valve will pull out of the hose. The PCV valve is located in the valve cover.
The pcv valve is on the passenger side valve cover
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Its near the valve cover, there should be a small, L shaped hose coming from cover that's about 2 inches long, and it goes right into the PVC Valve