Ford F150 Pickup. Manual — part 998

Fig. 16: Identifying Special Tools
Courtesy of FORD MOTOR CO.

WARNING:

Never remove the pressure relief cap while the engine is operating
or when the cooling system is hot. Failure to follow these
manuals can result in damage to the cooling system or engine or
personal injury. To avoid having scalding hot coolant or steam blow

2003 Ford Pickup F150

2003 ENGINE Engine Cooling - F150 Pickup

1. Drain the cooling system. For additional information, refer to COOLING SYSTEM DRAINING,

FILLING & BLEEDING .

2. Remove the water thermostat (8575).

3. Install the water hose connection (8592) without the water thermostat.

4. Use cooling system Flush-All, Flush Kit Hardware Package and Drain Kit to flush the engine and

radiator.

Use Premium Cooling System Flush VC-1 meeting Ford specification ESR-M14P7-A.

5. Install the water thermostat.

6. Back flush the heater core (18476). For additional information, refer to HEATER CORE

BACKFLUSHING .

7. Fill the cooling system. For additional information, refer to COOLING SYSTEM DRAINING,

FILLING & BLEEDING .

HEATER CORE BACKFLUSHING

Special Tool(s)

out of the degas bottle when removing the pressure relief cap, wait
until the engine has cooled, then wrap a thick cloth around the
pressure relief cap and turn it slowly. Step back while the pressure
is released from the cooling system. When you are sure all the
pressure has been released, turn and remove the pressure relief cap
(still with a cloth).

NOTE:

For additional information, refer to the cooling system Flush-All Operating
Manuals for specific vehicle hook-up.

2003 Ford Pickup F150

2003 ENGINE Engine Cooling - F150 Pickup

Fig. 17: Identifying Special Tools
Courtesy of FORD MOTOR CO.

1. Partially drain the cooling system. For additional information, refer to COOLING SYSTEM

DRAINING, FILLING & BLEEDING .

WARNING:

Never remove the pressure relief cap while the engine is operating
or when the cooling system is hot. Failure to follow these
manuals can result in damage to the cooling system or engine or
personal injury. To avoid having scalding hot coolant or steam blow
out of the degas bottle when removing the pressure relief cap, wait
until the engine has cooled, then wrap a thick cloth around the
pressure relief cap and turn it slowly. Step back while the pressure
is released from the cooling system. When you are sure all the
pressure has been released, turn and remove the pressure relief cap
(still with a cloth).

NOTE:

Refer to the cooling system Flush-All Operating Manuals for particular

2003 Ford Pickup F150

2003 ENGINE Engine Cooling - F150 Pickup

2. Use cooling system Flush-All, Flush Kit Hardware Package and Drain Kit to back flush the heater core.

Use Premium Cooling System Flush VC-1 meeting Ford specification ESR-M14P7-A.

3. Fill the cooling system. For additional information, refer to COOLING SYSTEM DRAINING,

FILLING & BLEEDING .

REMOVAL & INSTALLATION

BLOCK HEATER

Material

Fig. 18: Material Specification
Courtesy of FORD MOTOR CO.

Removal and Installation

1. Drain the cooling system. For additional information, refer to COOLING SYSTEM DRAINING,

FILLING & BLEEDING .

2. Disconnect the (A) block heater wire extension (6B019) from the (B) block heater wiring (6B018) and

remove.

vehicle hook-up.

2003 Ford Pickup F150

2003 ENGINE Engine Cooling - F150 Pickup