Where is the timing belt located on a 2004 dodge grand caravan?

Timing belts in most vehicles are located inside the engine.

Correction Yes, they are in the engine but on the side where the drivebelt(s) is/are located, certain components have to be removed then there is a cover on the side of the engine that contains the timing belt and components. It's not really INSIDE the engine, but it's a bit more complicated to access than the drivebelt which is in plain sight and not much is required to remove it.