Lincoln Navigator: Engine Cooling - 3.5L EcoBoost (272kW/370PS) / Coolant Pump. Removal and Installation

Special Tool(s) / General Equipment

Materials

Removal

1. Drain the cooling system.
   Refer to: Engine Cooling System Draining, Vacuum Filling and Bleeding (303-03 Engine Cooling - 3.5L EcoBoost (272kW/370PS), General Procedures).
   

1. Remove the LH CAC Intake Pipe.
   Refer to: Charge Air Cooler (CAC) Intake Pipe (303-12 Intake Air Distribution and Filtering - 3.5L EcoBoost (272kW/370PS), Removal and Installation).
   

1. • Remove the spring clip and disconnect the lower coolant hose.
     
   • Remove the bolts and position the degas bottle aside.
     

1. Loosen the coolant pump pulley bolts.
   

1. Remove the accessory drive belt.
   Refer to: Accessory Drive Belt (303-05 Accessory Drive - 3.5L EcoBoost (272kW/370PS)) .
   

1. NOTICE: Cover the A/C compressor belt to prevent coolant contamination of the belt.

   Completely cover the A/C compressor belt with waterproof plastic.
   

1. Remove the bolts and the coolant pump pulley.
   

1. Release the clamps and remove the coolant hose.
   Use the General Equipment: Hose Clamp Remover/Installer

1. Remove the bolts and position the water pump outlet connector aside.
   

1. Remove and discard the O-ring seal.
   

1. Release the clamp and disconnect the lower radiator hose.
   Use the General Equipment: Hose Clamp Remover/Installer

1. Disconnect the coolant hose quick release coupling.
   

1. Remove the bolts and the coolant pump.
   

1. Remove and discard the coolant pump gasket and O-ring seal.
   

Installation

1. NOTICE: Use Motorcraft® Orange Antifreeze/Coolant for vehicles built up to 08-July-2018 and Motorcraft® Yellow Antifreeze/Coolant for vehicles built from 09-July-2018. Failure to use the correct coolant can degrade corrosion protection.

   Install a new coolant pump gasket and lubricate the O-ring seal with clean engine coolant.
   Material: Motorcraft® Orange Concentrated Antifreeze/Coolant / VC-3-B (WSS-M97B44-D)
   Material: Motorcraft® Yellow Concentrated Antifreeze/Coolant / VC-13-G (WSS-M97B57-A1)

1. NOTE: Components not shown for clarity.

   Install the coolant pump and tighten the bolts.
   Torque:
     Stage 1:  89 lb.in (10 Nm)
     Stage 2:  45°

1. Connect the coolant hose quick release coupling.
   

1. Connect the lower radiator hose and position the clamp.
   Use the General Equipment: Hose Clamp Remover/Installer

1. Lubricate the O-ring seal with clean engine coolant.
   Material: Motorcraft® Orange Concentrated Antifreeze/Coolant / VC-3-B (WSS-M97B44-D)

1. Position the water pump outlet connector and tighten the bolts.
   Torque:
     Stage 1:  89 lb.in (10 Nm)
     Stage 2:  45°

1. Install the coolant hose.
   Use the General Equipment: Hose Clamp Remover/Installer

1. Position the coolant pump pulley and install the bolts finger tight.
   

1. Install the accessory drive belt.
   Refer to: Accessory Drive Belt (303-05 Accessory Drive - 3.5L EcoBoost (272kW/370PS)) .
   

1. Remove the plastic from the A/C compressor belt.
   

1. Tighten the coolant pump pulley bolts.
   Torque: 18 lb.ft (24 Nm)

1. • Position the degas bottle and install the bolts.
     Torque: 62 lb.in (7 Nm)
   • Connect the lower degas bottle hose and install the spring clip.
     

1. Install the LH CAC Intake Pipe.
   Refer to: Charge Air Cooler (CAC) Intake Pipe (303-12 Intake Air Distribution and Filtering - 3.5L EcoBoost (272kW/370PS), Removal and Installation).
   

1. Fill and bleed the cooling system.
   Refer to: Cooling System Draining, Vacuum Filling and Bleeding (303-03 Engine Cooling - 3.5L EcoBoost (272kW/370PS)) .