One problem related to engine rattling and whining sounds has been reported for the 1997 Mercury Grand Marquis. The most recently reported issues are listed below.
Rattling noise coming from engine, on the first start up due to the oilfeed back from lack of oil to the tappets and last several minutes, the hydraulic lifters are not holding their oil pressusre overnight,consumer was told by dealer this is a characteristic of this design.