If your navigator has air suspension then the switch located in the rear driver side panel where the air suspension switch is...it is right below the suspension switch. hope that helps.
According to the 1998 Lincoln Navigator Owner Guide : The fuel pump inertia switch ( shut off switch ) is in the front passenger footwell , behind the kick panel
On a 1999 Lincoln Navigator : The fuel pump inertia switch ( shut off switch ) is located in the front passenger footwell , behind the kick panel ( according to the Owner Guide )
According to the 1999 Lincoln Navigator Owner Guide : The fuel pump shut off switch ( inertia switch ) is located in the front passenger footwell , behind the kick panel
On a 2001 Lincoln Navigator : The fuel pump shut off switch ( inertia switch ) is in the front passenger footwell , by the kick panel
According to the 2001 Lincoln Navigator Owner Guide : The fuel pump shut off switch ( inertia switch ) is located in the front passenger footwell , by the kick panel
On a 2006 Lincoln Navigator : The fuel pump shut off switch ( inertia switch ) is located in the cargo area , near the liftgate , it is behind an access panel on the drivers side
According to the 1999 Lincoln Navigator Owner Guide : The fuel pump shut off switch ( inertia switch ) is located in the front passenger footwell , behind the kick panel
On a 2001 Lincoln Navigator : ( the fuel pump shut off switch / inertia switch is located in the front passenger footwell , by the kick panel ) * the kick panel is the interior trim panel just in front of the front door by the person's feet
The fuel shut off ( inertia ) switch is located in the front passenger's footwell by the kick panel
According to the 1998 Lincoln Navigator Owner Guide : The fuel pump shut off switch ( inertia switch ) is located in the front passenger footwell , behind the kick panel *the kick panel is the interior trim panel , just in front of the front door , beside the persons feet
On a ( 2000 ) Lincoln Navigator the rear window defroster switch is located in the dash below the headlight switch
On a 2000 Lincoln Navigator : The switch for turning OFF the air suspension compressor is located in the front passenger footwell , by the kick panel