Made the 1200 mile trip from Fullerton, CA to Stevensville, MT just fine, but the truck has developed a leak from the water pump. Coolant is coming out from somewhere from the bottom of the pump and running down the driver’s side of the Fluiddampr. It is still leaking like this more than hour after shutting down. Should I assume the water pump is bad and order a new one? I have the spin on duramax fan. I think this was a 2000 model pump? Is that correct?