One problem related to automatic transmission park/neutral start switch has been reported for the 2000 Mercury Grand Marquis. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2000 Mercury Grand Marquis based on all problems reported for the 2000 Grand Marquis.
Upon turning ignition to start vehicle, switching gear from park to reverse and accelerating vehicle makes a loud noise, cause unknown. Please provide any further information.
| Automatic Transmission problems | |
| Driveshaft problems | |
| Automatic Transmission Park/neutral Start Switch problems | |
| Automatic Transmission Torque Converter problems |