The Dodge Caravan is a family minivan made by Chrysler since 1984. The Grand Caravan has a longer wheelbase than the Caravan and most often has a 6-cylinder, 3.3-liter engine. The water pump in the 2003 Dodge Grand Caravan is attached to the front of the engine and receives power from the engine with a belt and pulley. The replacement of the water pump in this vehicle also requires you to drain