1999 FORD F SERIES MOTORHOME AND COMMERCIAL CHASSIS engine coolant

WARNING LIGHTS AND CHIMES
Low fuel
Illuminates as an early reminder of a
low fuel condition indicated on the
fuel gauge. The light comes on when
there is approximately 1/16th of a
tank indicated on the fuel gauge
(refer toFuel Gaugein this chapter for more information). The ignition
must be in the ON position for this lamp to illuminate. The lamp will also
illuminate for several seconds after the ignition is turned to the ON
position regardless of the fuel level.
Oil pressure/Engine coolant
This light will come on when the
key is in the ON position and the:
•engine coolant temperature is
very high
•engine oil pressure is low
The light serves as a notice that a system needs your attention and to
check the engine coolant temperature gauge and the engine oil pressure
gauge.
Refer toEngine coolant temperature gaugeandEngine oil pressure
gaugein this chapter for more information.
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8
PRN 21LOW
FUEL
BRAKE!+ -+ -000000000
0
50
60
70
20
10
0 3040
80
90
100
20406080
100
120
140
180
MPH km/h
1
02
RPMx1000
3
4
5
6
SERVICE
ENGINE
SOONABS
FUEL
RESET
DOOR
AJARBRAKE
LOW
FUEL
Instrumentation
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Battery voltage gauge
This gauge shows the battery
voltage when the ignition is in the
ON position. If the pointer moves
and stays outside the normal
operating range (as indicated), have
the vehicle’s electrical system
checked as soon as possible.
Engine coolant temperature gauge
Indicates the temperature of the
engine coolant. At normal operating
temperature, the needle remains
within the normal area (the area
between the “H” and “C”). If it
enters the red section, the engine is
overheating. Stop the vehicle as
soon as safely possible, switch off
the engine immediately and let the
engine cool. Refer toEngine
coolantin theMaintenance and
carechapter.
Never remove the coolant reservoir cap while the engine is
running or hot.
This gauge indicates the temperature of the engine coolant, not the
coolant level. If the coolant is not at its proper level the gauge indication
will not be accurate.
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Instrumentation
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Make sure the corresponding lights illuminate briefly. If a light fails to
illuminate, have the vehicle serviced.
•If the driver’s safety belt is fastened, the
light may not illuminate.
STARTING THE ENGINE
1. Turn the key to 5 (START)
without pressing the accelerator
pedal and release as soon as the
engine starts. The key will return to
4 (ON).
2. If the temperature is above –12°C (10°F) and the engine does not
start within five seconds on the first try, turn the key to OFF, wait ten
seconds and try again.
3. If the temperature is below –12°C (10°F) and the engine does not
start in fifteen seconds on the first try, turn the key OFF and wait ten
seconds and try again. If the engine does not start in two attempts,
depress the accelerator and start the engine while holding the
accelerator down to the floor. Release the accelerator when the engine
starts.
4. After idling for a few seconds, apply the brake and release the parking
brake.
Using the engine block heater (if equipped)
An engine block heater warms the engine coolant, which improves
starting, warms up the engine faster and allows the heater-defroster
system to respond quickly. Use of an engine block heater is strongly
recommended if you live in a region where temperatures reach –23°C
(–10°F) or below.
For best results, plug the heater in at least three hours before starting
the vehicle. Using the heater for longer than three hours will not harm
the engine, so the heater can be plugged in the night before starting the
vehicle.
3
2
1
5
4
Starting
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Do not start your engine with the air cleaner removed and do
not remove it while the engine is running.
IDENTIFYING COMPONENTS IN THE ENGINE COMPARTMENT
6.8L V10 ENGINE
1. Engine coolant reservoir
2. Engine oil filler cap
3. Automatic transmission fluid dipstick
4. Engine oil dipstick
5. Air filter assembly
6. Brake fluid reservoir
7. Power steering fluid reservoir
ENGINE OIL
Checking the engine oil
Refer to the Scheduled Maintenance Guide for the appropriate intervals
for checking the engine oil .
1. Make sure the vehicle is on level ground.
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Maintenance and care
55

4. Use only a DOT 3 brake fluid certified to meet Ford specifications.
Refer toLubricant specificationsin theCapacities and specifications
chapter.
Brake fluid is toxic.
If you use a brake fluid that is not DOT 3, you will cause
permanent damage to your brakes.
Do not let the reservoir for the master cylinder run dry. This
may cause the brakes to fail.
Brake system fluid should be replaced on a regular basis to maintain
optimum braking performance, especially under heavy-duty driving
conditions such as frequent steep grades or heavy towing loads. Refer to
the Scheduled Maintenance Guide for the service interval schedules.
ENGINE COOLANT
Check the level of the engine
coolant in the reservoir. Refer to the
Scheduled Maintenance Guide for
service interval schedules. Be sure
to read and understandPrecautions
when servicing your vehiclein
this chapter.
COLD FILL LEVEL
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59

If the engine coolant has not been checked at the recommended interval,
the engine coolant reservoir may become empty. If this occurs, add
engine coolant to the reservoir. For more information on engine coolant
maintenance, refer toAdding engine coolantin this chapter.
Automotive fluids are not interchangeable;do notuse engine coolant,
antifreeze or windshield washer fluid outside of its specified function and
vehicle location.
Adding engine coolant
Use only Ford Premium Engine Coolant E2FZ-19549–AA (in
Oregon, F5FZ-19549–CC, in Canada, Motorcraft CXC-10) or a
premium engine coolant that meets Ford specification
ESE-M97B44–A.
•DO NOT USE Ford Extended Life Engine Coolant
F6AZ-19544–AA (orange in color).
•DO NOT USE a DEX-COOLengine coolant or an equivalent
engine coolant that meets Ford specification WSS-M97B44–D.
•DO NOT USE alcohol or methanol antifreeze or any engine
coolants mixed with alcohol or methanol antifreeze.
•DO NOT USE supplemental coolant additives in your vehicle.
These additives may harm your engine’s cooling system.
•DO NOT MIX recycled coolant and conventional coolant
together in your vehicle. Mixing of engine coolants may harm
your engine’s cooling system.
•The use of an improper coolant may harm engine and cooling
system components and may void the warranty of your vehicle’s
engine cooling system.
•Use only the type of coolant with which your vehicle was
originally equipped. If you are unsure which type of coolant
your vehicle requires, contact your local dealer.
Do not put engine coolant in the container for the windshield
washer fluid.
If sprayed on the windshield, engine coolant could make it difficult to see
through the windshield.
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When the engine is cool, add a 50/50 mixture of engine coolant and
distilled water to the engine coolant reservoir.
Plain water may be added in an emergency, but youmustreplace it with
a 50/50 mixture of coolant and distilled water as soon as possible.
Check the coolant level in the coolant reservoir the next few times you
drive the vehicle. If necessary, add enough of a 50/50 mixture of coolant
and distilled water to bring the liquid level to the fill line on the
reservoir.
Never remove the coolant reservoir cap while the engine is
running or hot.
If you must remove the coolant reservoir cap, follow these steps to avoid
personal injury:
1. Before you remove the cap, turn the engine off and let it cool.
2. When the engine is cool, wrap a thick cloth around the cap. 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.
Change your engine coolant according to the appropriate schedule listed
in the Scheduled Maintenance Guide.
Recycled engine coolant
Ford Motor Company recommends that Ford and Lincoln-Mercury
dealers use recycled engine coolant produced by Ford-approved
processes.
Not all coolant recycling processes produce coolant which meets Ford
specification ESE-M97B44–A, and use of such coolant may harm engine
and cooling system components.
Always dispose of used automotive fluids in a responsible manner.
Follow your community’s regulations and standards for recycling and
disposing of automotive fluids.
Coolant refill capacity
To find out how much fluid your vehicle’s cooling system can hold, refer
toRefill capacitiesin theCapacities and specificationschapter.
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Have your dealer check the engine cooling system for leaks if you have
to add more than 1.0 liter (1.0 quart) of engine coolant per month.
Severe winter climate
If you drive in extremely cold climates (less than –36°C [–34°F]), it may
be necessary to increase the coolant concentration above 50%. Refer to
the chart on the coolant container to ensure the coolant concentration in
your vehicle is such that the coolant will not freeze at the temperature
level in which you drive during winter months. Never increase the
coolant concentration above 60%. Increased engine coolant
concentrations above 60% will decrease the freeze protection
characteristics of the engine coolant. Vehicles driven year-round in
non-extreme climates should use a 50/50 mixture of engine coolant and
distilled water for optimum freeze protection.
What you should know about fail-safe cooling
If the engine coolant supply is depleted, this feature allows the vehicle to
be driven temporarily before incremental component damage is incurred.
The “fail-safe” distance depends on ambient temperatures, vehicle load
and terrain.
How fail-safe cooling works
If the engine begins to overheat:
•the engine coolant temperature
gauge will move to the red (hot)
area.
•the
symbol will illuminate.
•the
symbol will illuminate.
•theService Engine Soon
indicator light will illuminate.
If the engine reaches a preset over-temperature condition, the engine
will automatically switch to alternating cylinder operation. Each disabled
cylinder acts as an air pump and cools the engine.
When this occurs the vehicle will still operate, however:
•the engine power will be limited.
•the air conditioning system will be disabled.
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