The water pump is the last thing to suspect for an overheating problem. You did not list an engine size or car model so there is no way to know what kind of things are involved. If you have an electric radiator fan, be sure that is turning on. You also did not list any symptoms or observations. What makes you think the engine is overheating? Does this occur only at highway speeds, only at very low speeds, or anytime?
Wednesday, October 12th, 2016 AT 4:00 PM