Some 2015 Lincoln Navigator vehicles built on or before July 17, 2015, may exhibit an illuminated malfunction illumination lamp with diagnostic trouble code (DTC) P0087 and possible loss of power.

Using a scan tool, check for DTC P0087. If this is the only DTC present, replace the fuel injection pump part number (P/N) BL3Z-9350-C, bolts W503297-S900 and nut W520100-S437.