Where is the water pump located on a 1991 Dodge Caravan?

On a 1991 Dodge Caravan, the water pump is located on the front of the engine, driven by the serpentine belt. It's usually situated between the engine block and the timing belt cover (if it has one). You'll likely need to access it from the front of the vehicle, possibly requiring removal of some belts and possibly the fan or fan shroud. Precise location might vary slightly depending on the specific engine (e.g., 2.5L, 3.0L, 3.3L). A repair manual specific to your engine size would be the most accurate source.