One problem related to water pump has been reported for the 1999 Cadillac STS. The most recently reported issues are listed below.
1999 Cadillac Sts experiencing problems with water sounds behind the dashboard as well as the engine overheating. The dealer replaced the water pump but that did not resolve the problem. While driving the engine light illuminated and a warning bell sounded. The vehicle was taken to the dealer who indicated that the engine had to be replaced. Two months after the engine was replaced the engine idle and overheating light illuminated. The engine was replaced again. The manufacturer was contacted and refused to provide any assistance.
Engine And Engine Cooling problems | |
Engine Head Gasket Leaking problems | |
Water Pump problems |