I think I'm getting hot air when I drive so thats why I don't think its the water pump, and I had the cooling system flushed as 50K miles and its only at 62K right now. As for coolant leaks I've been suspecting one as I've had to add coolant periodically, but the only problem is I don't know where its going. The car has never driped anything, and the oil is nice and black.
