Lincoln Nautilus Manuals

Lincoln Nautilus: Engine System - General Information / Run the Engine. General Procedures

NOTE: The engine running diagnostic mode is a hybrid powertrain control module strategy which is separate from the normal operating strategy. The specifics described here are applicable only to the power-split hybrid variants. When in this mode, the engine is running and does not turn off, as it does during normal operation. The engine RPM may be increased to the desired speed as the vehicle is in the pedal follower mode. To activate the engine running diagnostic mode the gear selector must be in PARK, and the ignition cycled to START. The engine is allowed to idle as long as the powertrain and hybrid electric systems operate within the calibrated limits. This mode is helpful whenever the engine must stay running for diagnostics and repairs that require the engine to be idling for extended time. Carry out the following sequence to activate this mode.

  1. NOTE: To increase success, make sure the vehicle is completely powered down before beginning the procedure.

    Apply the parking brake.
  1. Make sure the gear selector is in PARK and the ignition is off.
  1. Do not start the engine.
  1. Switch the ignition on, leaving the engine off.
  1. Within 5 seconds of switching the ignition on, fully apply the accelerator pedal and hold for 10 seconds.
  1. Release the accelerator pedal and, within 5 seconds, apply the brake, shift the vehicle to Drive (D), release the brake and immediately apply the accelerator pedal for 10 seconds.
  1. Release the accelerator pedal and shift the gear selector to PARK within 5 seconds (it is not necessary to apply the brake when shifting to Park [P]).
  1. NOTE: If the sequence is correctly executed the powertrain malfunction indicator (wrench lamp) flashes once per second when the gear selector is shifted to PARK. The engine may be started by cycling the ignition to START. The hybrid powertrain control module exits the engine running mode when the gear selector is shifted to any gear other than PARK, when the ignition is turned to the OFF or ACC position, or the powertrain or hybrid electric system exceeds calibrated limits.

    If this procedure is unsuccessful, switch the ignition off and allow the vehicle to fully power down for 10-15 seconds. Once this time frame has passed, attempt this procedure again starting with step 1.

    RTV Sealing Surface Cleaning and Preparation. General Procedures

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    Spark Plug Inspection. General Procedures

    Inspection NOTE: Dropped spark plugs should always be discarded. Unfired An unfired spark plug should appear very clean with a pure nickel finish to the threads and ground strap...

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    Lincoln Nautilus 2018-2022 Service Manual: Rear Suspension - Overview. Description and Operation


    Overview The rear suspension consists of the following components: Coil springs Lower arm and bushing assemblies Shock absorbers Stabilizer bar and links Toe links Upper arms Lower arm vertical links Wheel bearing and wheel hub assemblies Wheel knuckles Wheel studs The rear suspension uses 2 parallel arms (1 upper and 1 lower)...

    Lincoln Nautilus 2018-2022 Service Manual: Wheel to Tire Runout Minimization. General Procedures


    Check NOTE: Road Force® values in illustrations are shown in pounds. NOTE: Match mounting is a technique used to reduce radial runout or road force on wheel and tire assemblies. Excessive runout is a source of ride quality complaints and match mounting can be used to minimize the runout...

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    Locating the Pre-Collision Assist Sensors

    Lincoln Nautilus. Locating the Pre-Collision Assist Sensors

    Camera. Radar sensor (if equipped).

    If a message regarding a blocked sensor or camera appears in the information display, something is obstructing the radar signals or camera images. The radar sensor is behind the fascia cover in the center of the lower grille. With a blocked sensor or camera, the system may not function, or performance may reduce. See Pre-Collision Assist – Information Messages.

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