One problem related to water pump has been reported for the 1999 Chevrolet Malibu. The most recently reported issues are listed below.
Chevrolet Malibu LS 1999, front end loose, replaced 2 bolts. While driving the entire steering rack cracked for no reason. Less than a year later, the engine cradle rack came apart from the frame of the vehicle. The front brakes, lower intake gasket and water pump were all replaced. The abs and power steering pressure hose was replaced. The brake light bulbs had burned out.