Cooling System: Description and Operation
Engine Cooling
NOTICE: All vehicle cooling systems are filled with Motorcraft(R) Premium Gold Engine Coolant or equivalent meeting Ford specification WSS-M97B51-A1 (yellow color). Do not mix coolant types. Mixing coolants may degrade the coolant's corrosion protection.
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 Cooling System Flushing. Failure to follow these instructions may damage the engine or cooling system.
NOTE: If cooling system stop leak pellets are used, Motorcraft(R) Premium Gold Engine Coolant may darken from yellow to golden tan.
The cooling system consists of the following components:
- Block heater (if equipped)
- Engine Coolant Temperature (ECT) sensor
- Fan blade, fan motor and fan shroud assembly
- Radiator
- Pressure relief cap
- Radiator draincock
- Coolant pump
- Coolant temperature indicator sender unit
- Coolant thermostat
- Oil filter adapter
- Radiator overflow hose
The radiator allows excess engine heat to be transferred to the air.
Radiator tanks cannot be repaired.
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 in the degas bottle.
When adding engine coolant, use a 50/50 mixture of engine coolant and distilled water. A coolant concentration of 50% will provide freeze point protection down to -37°C (-34°F).
To maintain the integrity of the coolant and the cooling system:
- Add Motorcraft(R) Premium Gold Engine Coolant or equivalent meeting Ford specification WSS-M97B51-A1 (yellow color). Do not mix coolant types.
- Do not add/mix any other engine coolant. Mixing coolants may degrade the coolant's corrosion protection.
- Do not add alcohol, methanol, 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 unless it meets the requirements of Ford specification WSS-M97B51-A1. Not all coolant recycling processes meet these Ford specifications. Use of such coolants can harm the engine and cooling system components.
Coolant Flow Diagram
NOTE: Black arrows indicate hot, white arrows indicate cold.
