Cooling System Draining, Filling and Bleeding
Cooling System Draining, Filling and Bleeding - 4.0L
Draining
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.
NOTICE: The coolant must be recovered in a suitable, clean container for reuse. If the coolant is contaminated it must be recycled or disposed of correctly. Contaminated coolant may damage cooling system components.
NOTICE: Always fill the cooling system with the manufacturer's specified coolant. If a non-specified coolant has been used the cooling system must be chemically flushed. Refer to Cooling System Flushing . Failure to follow these instructions may damage the engine or cooling system. Cooling System Flushing
NOTE: If cooling system stop leak pellets are used, Motorcraft Premium Gold Engine Coolant may darken from yellow to golden tan.
NOTE: Less than 80% of the coolant capacity can be recovered with the engine in the vehicle. Dirty, rusty or contaminated coolant requires replacement.
1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Jacking and Lifting Service and Repair.
2. Release the pressure in the cooling system by slowly turning the radiator cap one-half to one turn counterclockwise to the first stop on the filler neck. When the pressure has been released, remove the radiator cap.
3. Remove the 2 bolts and the air deflector.
4. Place a suitable container below the radiator draincock. Drain the coolant.
5. Close the radiator draincock when finished.
- Tighten to 2 Nm (18 lb-in).
Filling and Bleeding with a Vacuum Cooling System Filler
NOTICE: All air must be removed from the cooling system. Failure to remove all the air from the cooling system may result in engine damage.
NOTICE: Turn the radiator cap clockwise until it stops (approximately 135 degrees). Failure to tighten the radiator cap may result in engine damage.
NOTICE: Vehicle cooling systems are filled with Motorcraft(R) Premium Gold Engine Coolant. Always fill the cooling system with the manufacturer's specified coolant. If a non-specified coolant has been used the cooling system must be chemically flushed. Refer to Cooling System Flushing. Failure to follow these instructions may damage the engine or cooling system Cooling System Flushing.
NOTICE: Engine coolant provides freeze protection, boil protection, cooling efficiency and corrosion protection to the engine and cooling components. In order to obtain these protections, the engine coolant must be maintained at the correct concentration and fluid level. Failure to follow these instructions may result in engine or cooling system damage.
To maintain the integrity of the coolant and the cooling system:
- Do not mix coolant types. Mixing coolants may degrade the coolant's corrosion protection.
- Do not add alcohol, methanol or brine, or any engine coolants mixed with alcohol or methanol antifreeze. These can cause engine damage from overheating or freezing.
- Do not mix with recycled coolant. Use of such coolant may harm the engine and cooling system components.
NOTE: If cooling system stop leak pellets are used, Motorcraft Premium Gold Engine Coolant may darken from yellow to golden tan.
1. Connect the Airlift Cooling System Tester body and the appropriate rubber adapter to the radiator.
2. Clamp the radiator-to-coolant expansion tank hose near the radiator.
3. Follow the Airlift Cooling System Tester manufacturer's instructions to fill and bleed the cooling system.
- Recommended coolant concentration is 50/50 ethylene glycol to distilled water.
- For extremely cold climates (less than -36°C [-33°F]):
- It may be necessary to increase the coolant concentration above 50%.
- NEVER increase the coolant concentration above 60%.
- Maximum coolant concentration is 60/40 for cold weather areas.
- A coolant concentration of 60% will provide freeze point protection down to -52°C (-62°F).
- Engine coolant concentration above 60% will decrease the overheat protection characteristics of the engine coolant and may damage the engine.
- For extremely hot climates:
- It is still necessary to maintain the coolant concentration above 40%.
- NEVER decrease the coolant concentration below 40%.
- Minimum coolant concentration is 40/60 for warm weather areas.
- A coolant concentration of 40% will provide freeze point protection down to -24°C (-11°F).
- Engine coolant concentration below 40% will decrease the corrosion and freeze protection characteristics of the engine coolant and may damage the engine.
- Vehicles driven year-round in non-extreme climates should use a 50/50 mixture of engine coolant and distilled water for optimum cooling system and engine protection.
Filling without a Vacuum Cooling System Filler
NOTICE: All air must be removed from the cooling system. Failure to remove all the air from the cooling system may result in engine damage.
NOTICE: Vehicle cooling systems are filled with Motorcraft(R) Premium Gold Engine Coolant. Always fill the cooling system with the manufacturer's specified coolant. If a non-specified coolant has been used the cooling system must be chemically flushed. Refer to Cooling System Flushing. Failure to follow these instructions may damage the engine or cooling system. Cooling System Flushing
NOTICE: Engine coolant provides freeze protection, boil protection, cooling efficiency and corrosion protection to the engine and cooling components. In order to obtain these protections, the engine coolant must be maintained at the correct concentration and fluid level. Failure to follow these instructions may result in engine or cooling system damage.
To maintain the integrity of the coolant and the cooling system:
- Do not mix coolant types. Mixing coolants may degrade the coolant's corrosion protection.
- Do not add alcohol, methanol or brine, or any engine coolants mixed with alcohol or methanol antifreeze. These can cause engine damage from overheating or freezing.
- Do not mix with recycled coolant. Use of such coolant may harm the engine and cooling system components.
NOTE: If cooling system stop leak pellets are used, Motorcraft Premium Gold Engine Coolant may darken from yellow to golden tan.
1. Install the air deflector and the 2 bolts.
- Tighten to 15 Nm (133 lb-in).
2. Fill the overflow bottle with the correct engine coolant mixture.
- Recommended coolant concentration is 50/50 ethylene glycol to distilled water.
- For extremely cold climates (less than -36°C [-33°F]):
- It may be necessary to increase the coolant concentration above 50%.
- NEVER increase the coolant concentration above 60%.
- Maximum coolant concentration is 60/40 for cold weather areas.
- A coolant concentration of 60% will provide freeze point protection down to -52°C (-62°F).
- Engine coolant concentration above 60% will decrease the overheat protection characteristics of the engine coolant and may damage the engine.
- For extremely hot climates:
- It is still necessary to maintain the coolant concentration above 40%.
- NEVER decrease the coolant concentration below 40%.
- Minimum coolant concentration is 40/60 for warm weather areas.
- A coolant concentration of 40% will provide freeze point protection down to -24°C (-11°F).
- Engine coolant concentration below 40% will decrease the corrosion and freeze protection characteristics of the engine coolant and may damage the engine.
- Vehicles driven year-round in non-extreme climates should use a 50/50 mixture of engine coolant and distilled water for optimum cooling system and engine protection.
3. NOTICE: Turn the radiator cap clockwise until it stops (approximately 135 degrees). Failure to tighten the radiator cap may result in engine damage.
Install the radiator cap.
4. Move the temperature blend selector to the full warm position.
5. WARNING: Do not stand in line with or near the engine cooling fan blade when revving the engine. A damaged fan can separate during operation. Failure to follow this instruction may result in serious personal injury.
Run the engine until it reaches operating temperature.
6. Add the correct coolant mixture to the overflow bottle until the coolant level is between the COOLANT FILL LEVEL marks.
7. Turn off the engine and allow the cooling system to cool. Recheck the coolant level and fill the cooling system to the FULL mark on the overflow bottle.
8. WARNING: Do not stand in line with or near the engine cooling fan blade when revving the engine. A damaged fan can separate during operation. Failure to follow this instruction may result in serious personal injury.
Repeat Steps 3 through 8 until the reservoir level is OK.
Bleeding without a Vacuum Cooling System Filler
1. Bleed the cooling system as follows:
- Select the maximum heater temperature and blower motor speed settings. Position the control to discharge air from the A/C vents in the instrument panel.
- WARNING: Do not stand in line with or near the engine cooling fan blade when revving the engine. A damaged fan can separate during operation. Failure to follow this instruction may result in serious personal injury.
Start the engine and allow it to idle. While the engine is idling, feel for hot air from the A/C vents.
- NOTICE: If the air discharge remains cool and the engine coolant temperature gauge does not move, the engine coolant level is low in the engine and must be filled. Stop the engine, allow it to cool and fill the cooling system. Operating the engine with low coolant level may cause engine or cooling system component damage.
Start the engine and allow it to idle until the normal operating temperature is reached. Hot air should discharge from the A/C vents. The engine coolant temperature gauge should maintain a stabilized reading in the middle of the NORMAL range and the upper radiator hose should feel hot to the touch.
- Shut the engine off and allow it to cool.
- Check the engine for coolant leaks.
- Check the engine coolant level in the overflow bottle and fill it as necessary.