BK, how the hell do you replace the water pump WITHOUT removing the timing cover??:confuzeldIf the water pump was replaced without removing the timing cover, it could be leaking on the passenger side coolant passage between the block and timing cover. Coolant will spray on the front of the head and evaporate. I had it happen twice after only replacing the water pump and not putting a real gasket between the timing cover and block. I traced down the leak with a very bright light and cold engine. I could see the fine mist. Could not see it with a hot engine.