Replacing Coolant

DRAINING

NOTE: Some coolant water will be retained in the cylinder block (6010) if cylinder block drain plugs are not removed. When refilling cooling system after flushing, adjust coolant mix ratio to obtain a 50/50 mix. Be certain to account for approximately 4.8 liters (5.1 quarts) of coolant left in the cylinder block when the drain plugs are not removed.

1. Turn the engine OFF and allow to cool.

WARNING: NEVER REMOVE PRESSURE RELIEF CAP UNDER ANY CONDITIONS WHILE ENGINE IS OPERATING. FAILURE TO FOLLOW THESE INSTRUCTIONS COULD RESULT IN PERSONAL INJURY AND/OR DAMAGE TO THE COOLING SYSTEM OR ENGINE. TO AVOID BURNS FROM SCALDING COOLANT OR STEAM, USE EXTREME CARE WHEN REMOVING THE PRESSURE RELIEF CAP.

2. If the cooling system is still hot, carefully wrap a thick cloth around the pressure relief cap and rotate slowly until the pressure begins to release. Step back until the pressure is released.
3. Then rotate the pressure relief cap until free. Remove the pressure relief cap.
4. Open the radiator draincock and disconnect the engine coolant return hose at coolant inlet connection on oil filter adapter (6881) to drain the coolant system.

REFILLING

NOTE: A 50/50 mixture of Premium Cooling System Fluid E2FZ-19549-AA or B (in Oregon, F5FZ-19549-CC, in Canada, Motorcraft CXC-8-B) or equivalent meeting Ford specification ESE-M97B44-A and water is required to prevent damage to the cooling system.

Fill the cooling system as follows:
1. Check all the hose clamps for proper tightness. Make sure radiator draincock is closed.
2. Place the heater temperature selector in maximum heat position.
3. Remove the cooling system fill plug from engine water bypass tube.

CAUTION: Do not fill the cooling system through the radiator coolant recovery reservoir only. Coolant will not enter engine. Only radiator coolant recovery reservoir and radiator will be filled and engine overheating will occur.

CAUTION: Use extreme care to keep coolant mixture off of the accessory drive belt and pulleys. If needed, remove drive belt (8620) and rinse with clear water. Clean pulleys and install drive belt. Belt squeal and early belt fatigue will occur otherwise.

4. Add the coolant into the fill neck on the water bypass tube until coolant reaches "FULL" mark on radiator coolant recovery reservoir.
5. Reinstall the pressure relief cap to radiator coolant recovery reservoir.
6. Slowly continue to fill cooling system at water bypass tube fill neck, allowing air to escape, until full.
7. Start the engine and run at idle. Add a 50/50 mixture of Ford Premium Cooling System and water at the water bypass tube fill neck until full.
8. Reinstall water bypass tube fill plug. Tighten fill plug to 15-18 Nm (11-13 lb-ft).

BLEEDING
1. Select maximum heater temperature and fan speed settings. Position control to discharge air at A/C registers in instrument panel.

WARNING: TOAN7OIDT1HE POSSIBILITY OF PERSONAL INJURY OR DAMAGE TO THE VEHICLE, DO NOT OPERATE ENGINE WITH HOOD OPEN UNTIL FAN BLADE HAS BEEN FIRST EXAMINED FOR POSSIBLE CRACKS AND SEPARATION.

2. Start engine and allow to idle. While engine is idling, feel for hot air at A/C registers.

CAUTION: If air discharge remains cool and engine temperature gauge does not move, engine coolant level is low in engine and must be filled. Stop engine, allow to cool and fill coolant.

3. Start engine and allow to idle until normal operating temperature is reached. Hot air should discharge from A/C registers. The engine temperature gauge should maintain a stabilized reading in the middle of the "NORMAL" range and the lower radiator hose should feel hot to the touch.
4. Shut engine off and allow to cool.
5. Visually check engine for coolant leaks.

NOTE: When low coolant warning message flashes, approximately 0.946-1.416 liters (1-1.5 quarts.) of a 50/50 mixture of Ford Premium Cooling System Fluid or equivalent meeting Ford specification ESE-M97B44-A and water can be added to the radiator coolant recovery reservoir.

6. Check coolant level in radiator coolant recovery reservoir and fill as necessary.