A coolant leak may develop from the water pump. The engine may overheat as a result of the coolant loss. A leaking water pump should be replaced.Google+
Car Problem Reports
Cadillac Escalade Leaking Water Pump May Cause Coolant Loss and Overheating
Cadillac Escalade Problem
Visitor, 2004 Cadillac Escalade, 159,000 mi
My water pump failed and knocked out the alternator. I was driving down the road and steam started pouring out of engine, no engine service lights came on at all. I was a block from dealership so I took it there. They told that the water pump failed and took out alternator. Repair cost was $1400. They said I have a power steering leak but that I wold have to bring back to have it diagnosed for additional fee.