Ford Crown Victoria, Mercury Grand Marquis, Marauder, Lincoln Town Car 1999-2005

Voltage Regulator


Removal & Installation

The alternator has an internal voltage regulator that is not repaired separately. A new alternator and voltage regulator must be installed as an assembly. All Marauder (4.6L 4V) and Police Interceptor (4.6L 2V) applications are equipped with a one-way clutch (OWC) in the alternator pulley. The OWC pulley temporarily disengages the alternator rotor from the front end accessory drive (FEAD) system during high deceleration rates on the engine, which may increase belt life and decrease belt chirp. A new OWC pulley and alternator/voltage regulator must be installed as an assembly.

External Regulator
  1. Disconnect the negative battery cable.
  3. Disconnect the regulator from the wiring harness.
  5. Remove the regulator retaining screws and the regulator.
  7. Installation is the reverse of the removal procedure.