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
Average Mileage: 139,500 mi (120,000 mi - 159,000 mi)
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.