Originally Posted by ItstillaV6

When you refill the cooling system, fill the overflow bottle and radiator. Once they are filled, you should see a hose, on the passenger side of the engine bay, to your water pump. It'll be located under you alternator, and in front of your right exhaust manifold. There is a black plastic cap. Unscrew it and begin "priming" the water pump. This also fills your heater core. When the level if at the top, of the cap threads, place the cap back on.

When I did my water pump, I didn't fill the rubber line, to my pump and heater core. Within a few minutes, my temp gauge had shot up the red area. When I let it cool, I popped that cap, filled it up, and that took care of the problem..