Lincoln Aviator 2020-2025 Service Manual / Powertrain / Engine / Engine Cooling - 3.0L EcoBoost / Removal and Installation - Degas Bottle

Lincoln Aviator: Engine Cooling - 3.0L EcoBoost / Removal and Installation - Degas Bottle

Special Tool(s) / General Equipment

Fluid Suction Gun
Hose Clamp Remover/Installer
Locking Pliers

Removal

WARNING: Always allow the engine to cool before opening the cooling system. Do not unscrew the coolant pressure relief cap when the engine is operating or the cooling system is hot. The cooling system is under pressure; steam and hot liquid can come out forcefully when the cap is loosened slightly. Failure to follow these instructions may result in serious personal injury.

NOTE: Removal steps in this procedure may contain installation details.

WARNING: When releasing the cooling system pressure, cover the coolant expansion tank cap with a thick cloth.
Release the cooling system pressure by slowly turning the degas bottle cap between 2 and 3 turns and remove the degas bottle cap.

Using general tools clamp the lower expansion tank hose and syphon the engine coolant from the expansion tank.
Use the General Equipment: Fluid Suction Gun
Use the General Equipment: Locking Pliers

Remove the bolt and position the degas bottle.
Torque: 44 lb.in (5 Nm)

- Detach the electrical wiring harness retainer and the coolant hose retainer.
- Release the clamps and disconnect the coolant hoses.
  Use the General Equipment: Hose Clamp Remover/Installer
- Remove the degas bottle.

Installation

To install, reverse the removal procedure.

Fill the degas bottle with the recommended coolant mixture and fill level.
Refer to: Specifications (303-03A Engine Cooling - 3.0L EcoBoost, Specifications).

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Lincoln Aviator 2020-2025 Service Manual: Removal and Installation - Selector Shaft Seal

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Lincoln Aviator 2020-2025 Service Manual: Description and Operation - Instrument Panel and Interior Switches Illumination - System Operation and Component Description

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Children and Airbags

WARNING: Airbags can kill or injure a child in a child restraint. Never place a rear-facing child restraint in front of an active airbag. If you must use a forward-facing child restraint in the front seat, move the seat upon which the child restraint is installed all the way back.

Lincoln Aviator. Children and Airbags