Ford Low Cab Forward (Ford year). Manual — part 32

Note: If the coolant should get extremely low and the engine very hot,
let the engine cool for approximately 15 minutes before adding coolant.
After the engine has cooled, start the engine and add coolant slowly.
Adding coolant to a hot engine may crack the cylinder head or
crankcase. Never use only water to fill the cooling system.

When adding coolant, make sure it is a 50/50 mixture of engine coolant
and distilled water. Add the mixture to the coolant reservoir, when the
engine is cool, until the appropriate fill level is obtained.

Do not add engine coolant when the engine is hot. Steam and
scalding liquids released from a hot cooling system can burn you

badly. Also, you can be burned if you spill coolant on hot engine parts.

Do not put engine coolant in the windshield washer fluid
container. If sprayed on the windshield, engine coolant could

make it difficult to see through the windshield.

The cooling system in your vehicle is filled with yellow-colored
Motorcraft Premium Gold Engine Coolant meeting Ford Specification
WSS-M97B51–A1.

Note: Add the coolant type originally equipped in your vehicle.
• Add Motorcraft Premium Gold Engine Coolant, VC-7–B

(yellow-colored) meeting Ford Specification WSS-M97B51–A1.

Note: Use of Motorcraft Cooling System Stop Leak Pellets, VC-6, may
darken the color of Motorcraft Premium Gold Engine Coolant from
yellow to golden tan.
• Do not add/mix extended life coolants such as Motorcraft

Specialty Orange Engine Coolant meeting Ford specification
WSS-M97B44–D, or DEX-COOL

威 brand, with the factory-fill

coolant. Mixing Motorcraft Specialty Orange Engine Coolant or any
orange-colored extended life product such as DEX-COOL

威 brand with

your factory filled coolant can result in degraded corrosion protection.

• A large amount of water without engine coolant may be added, in case

of emergency, to reach a vehicle service location. In this instance, the
cooling system must be drained and refilled with a 50/50 mixture of
engine coolant and distilled water as soon as possible. Water alone
(without engine coolant) can cause engine damage from corrosion,
overheating or freezing.

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• Do not use alcohol, methanol or brine or any engine coolants

mixed with alcohol or methanol antifreeze (coolant). Alcohol
and other liquids can cause engine damage from overheating or
freezing.

• Do not add extra inhibitors or additives to the coolant. These

can be harmful and compromise the corrosion protection of the engine
coolant.

• Do not mix with recycled coolant unless from a Ford-approved

recycling process (see Use of Recycled Engine Coolant section).

To reduce the risk of personal injury, make sure the engine is
cool before unscrewing the coolant pressure relief cap. The

cooling system is under pressure; steam and hot liquid can come out
forcefully when the cap is loosened slightly.

1. Before you begin, turn the engine off and let it cool.

2. When the engine is cool, wrap a thick cloth around the coolant
pressure relief cap on the coolant reservoir (an opaque plastic bottle).
Slowly turn cap counterclockwise until pressure begins to release.

3. Step back while the pressure releases.

4. When you are sure that all the pressure has been released, use the
cloth to turn it counterclockwise and remove the cap.

5. Fill the coolant reservoir slowly
with the proper coolant mixture
(see above), to the top indicator
(full mark) on the reservoir. If you
removed the radiator cap in an
overflow system, fill the radiator
until the coolant is visible and
radiator is almost full.

6. Replace the cap. Turn until
tightly installed to prevent coolant
loss.

After any coolant has been added, check the coolant concentration (refer
to Severe climates later in this chapter). If the concentration is not
50/50 (protection to –34°F [–36°C]), drain some coolant and adjust the
concentration. It may take several drains and additions to obtain a 50/50
coolant concentration.

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131

Whenever coolant has been added, the coolant level in the coolant
reservoir should be checked the next few times you drive the vehicle. If
necessary, add enough 50/50 concentration of engine coolant and
distilled water to bring the liquid level to the proper level.

If you have to add more than 1.0 quart (1.0L) of engine coolant per
month, have your dealer check the engine cooling system for leaks.
Operating an engine with a low level of coolant can result in engine
overheating and possible engine damage.

Recycled engine coolant

Ford Motor Company does NOT recommend the use of recycled engine
coolant in vehicles originally equipped with Motorcraft Premium Gold
Engine Coolant since a Ford-approved recycling process is not yet
available.

Used engine coolant should be disposed of in an appropriate

manner. Follow your community’s regulations and standards for recycling
and disposing of automotive fluids.

Engine coolant capacities and part numbers

For cooling system capacities, refer to Refill capacities in this chapter.
For coolant part numbers, refer to Lubricant specifications in this
chapter.

Severe climates

If you drive in extremely cold climates (less than –34°F [–36°C]):
• It may be necessary to increase the coolant concentration

above 50%.

• NEVER increase the coolant concentration above 60%.
• Engine coolant concentrations above 60% will decrease the

overheat protection characteristics of the engine coolant and
may cause engine damage.

• If available, refer to the chart on the coolant container to

ensure the coolant concentration in your vehicle will provide
adequate freeze protection at the temperatures in which you
drive in the winter months.

If you drive in extremely hot climates:
• It is still necessary to maintain the coolant concentration

above 40%.

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• NEVER decrease the coolant concentration below 40%.
• Engine coolant concentrations below 40% will decrease the

corrosion protection characteristics of the engine coolant and
may cause engine damage.

• Engine coolant concentrations below 40% will decrease the

freeze protection characteristics of the engine coolant and may
cause engine damage.

• If available, refer to the chart on the coolant container to

ensure the coolant concentration in your vehicle will provide
adequate protection at the temperatures in which you drive.

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.

FUEL FILTER/WATER SEPARATOR

Your vehicle is equipped with two fuel filters; one is mounted on top of
the engine, the second one is mounted inside the Horizontal Fuel
Conditioner Module (HFCM) on the inside of the left frame rail by the
transmission. The fuel filter/water separator removes any contaminated
particles and/or water from the fuel before the fuel enters the engine.

The fuel filter/water separator should be drained as recommended in the
scheduled maintenance information.

Draining the fuel filter/water separator

Water should be drained from the
module assembly whenever the
warning light comes on or every
5,000 miles (8,000 km). The WATER
IN FUEL light will come on when approximately 0.13 pints (60 cc) of
water accumulates in the module.

1. Stop the vehicle and shut off the engine.

The vehicle must be stopped with the engine off when draining
the HFCM. Fuel may ignite if separator is drained while the

engine is running or vehicle is moving.

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