1999 FORD MUSTANG cooling

the windshield defroster ducts. If the temperature
is about 10ÉC (50ÉF) or higher, the air conditioner
will automatically dehumidify the air to reduce
fogging.
²
-Distributes outside air through the
windshield defroster ducts. It can be used to clear
ice or fog from the windshield. If the temperature
is about 10ÉC (50ÉF) or higher, the air conditioner
will automatically dehumidify the air to reduce
fogging.
Operating tips
²In humid weather, selectbefore driving. This
will reduce your windshield from fogging. After a
few minutes, select any desired position.
²To reduce humidity buildup inside the vehicle,
don't drive with the climate control system in the
OFF position.
²Don't put objects under the front seat that will
interfere with the airflow to the back seats.
²Remove any snow,
ice or leaves from
the air intake area
(at the bottom of
the windshield).
²If your vehicle has been parked with the windows
closed during hot weather, the air conditioner will
do a much faster job of cooling if you drive for
two or three minutes with the windows open. This
will force most of the hot, stale air out of the
vehicle. Then operate your air conditioner as you
would normally.
²When placing objects on top of your instrument
panel, be careful to not place them over the
defroster outlets. These objects can block airflow
and reduce your ability to see through your
windshield. Also, avoid placing small objects on
Controls and features
20

If you use a rental trailer, follow the instructions that
the rental agency gives to you.
Do not attach safety chains to the bumper.
Trailer brakes
Electric brakes and manual, automatic or surge-type
brakes are safe if installed properly and adjusted to
the manufacturer's specifications. The trailer brakes
must meet local and Federal regulations.
Do not connect a trailer's hydraulic brake
system directly to your vehicle's brake
system. Your vehicle may not have enough braking
power and your chances of having a collision
greatly increase.
The braking system of the tow vehicle is rated for
operation at the GVWR not GCWR.
Trailer lamps
Trailer lamps are required on most towed vehicles.
Make sure your trailer lamps conform to local and
Federal regulations. See your dealer or trailer rental
agency for proper instructions and equipment for
hooking up trailer lamps.
Driving while you tow
Do not drive faster than 88 km/h (55 mph) when
towing a trailer.
Speed control may shut off if you are towing on
long, steep grades.
When towing a trailer:
²Use a lower gear when towing up or down steep
hills. This will eliminate excessive downshifting
and upshifting for optimum fuel economy and
transmission cooling.
²Anticipate stops and brake gradually.
Driving
109

Exceeding the GCWR rating may cause internal
transmission damage and void your warranty
coverage.
Servicing after towing
If you tow a trailer for long distances, your vehicle
will require more frequent service intervals. Refer to
your Scheduled Maintenance guide for more
information.
Trailer towing tips
²Practice turning, stopping and backing up in an
area before starting on a trip to get the feel of the
vehicle trailer combination. When turning, make
wider turns so the trailer wheels will clear curbs
and other obstacles.
²Allow more distance for stopping with a trailer
attached.
²The trailer tongue weight should be 10% of the
loaded trailer weight.
²After you have traveled 80 km (50 miles),
thoroughly check your hitch, electrical
connections and trailer wheel lug nuts.
²When stopped in traffic for long periods of time in
hot weather, place the gearshift in P (Park) and
increase idle speed. This aids engine cooling and
air conditioner efficiency.
²Vehicles with trailers should not be parked on a
grade. If you must park on a grade, place wheel
chocks under the trailer's wheels.
Driving
110

The high-current fuses are coded as follows.
Fuse/Relay
LocationFuse Amp
RatingDescription
Relay 1 Ð Fog Lamp Interrupt
Relay 2 Ð Int. Wiper
Relay 3 Ð Wiper HI/LO
Relay 4 Ð Starter
Relay 5 Ð Fog Lamps
1 50A**
(4.6L), 30A
CB (3.8L)Electric Cooling Fan
Motor
2 30A** Headlamps
3 40A** Starter Motor Relay,
Ignition Switch
4 40A** Ignition Switch
5 40A** Ignition Switch
6 40A** Instrument Cluster,
PCM
7 30A** Secondary Air Injection
(3.8L only)
8 50A** ABS Module
5
RELAY4
RELAY3
RELAY2
RELAY1
RELAY
12
MAXI
29
DIODE28
CB27
MAXI26
MAXI25
MAXI23
MINI
24
MINI
21
MINI
22
MINI
19
MINI17
MINI18
MINI15
MINI13
MINI
14
MINI16
MINI20
MINI
11
MAXI10
MAXI9
MAXI8
MAXI7
MAXI6
MAXI5
MAXI4
MAXI3
MAXI2
MAXI1
MAXI
SEE OWNERS MANUAL CONSULTER LA GUIDE
Roadside emergencies
118

Do not push start your vehicle. You could
damage the catalytic converter.
Batteries contain sulfuric acid which can
burn skin, eyes, and clothing, if contacted.
Do not attempt to push start your vehicle.
Automatic transmissions do not have
push-start capability.
Preparing your vehicle
1.Use only a 12±volt supply to start your
vehicle.
2. Do not disconnect the battery of the disabled
vehicle as this could damage the vehicle's electrical
system.
3. Park the booster vehicle close to the hood of the
disabled vehicle making sure the two vehiclesdo
nottouch. Set the parking brake on both vehicles
and stay clear of the engine cooling fan and other
moving parts.
4. Check all battery terminals and remove any
excessive corrosion before you attach the battery
cables. Ensure that vent caps are tight and level.
5. Turn the heater fan on in both vehicles to protect
any electrical surges. Turn all other accessories off.
Roadside emergencies
124

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.
²DO NOT USE Ford Extended Life Engine
Coolant F6AZ-19544±AA (orange in color).
²DO NOT USE a DEX-COOLtengine coolant
or an equivalent engine coolant that meets
Ford specification WSS-M97B44±D.
²DO NOT USE alcohol or methanol antifreeze
or any engine coolants mixed with alcohol or
methanol antifreeze.
²DO NOT USE supplemental coolant additives
in your vehicle. These additives may harm
your engine's cooling system.
²DO NOT MIX recycled coolant and
conventional coolant together in your
vehicle. Mixing of engine coolants may harm
your engine's cooling system.
²The use of an improper coolant may harm
engine and cooling system components and
may void the warranty of your vehicle's
engine cooling system.
²Use 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.
When the engine is cool, add a 50/50 mixture of
engine coolant and distilled water to the engine
coolant reservoir.
Maintenance and care
142

Plain water may be added in an emergency, but you
mustreplace 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.
Maintenance and care
143

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 the
Capacities and specificationschapter.
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
±36ÉC [±34ÉF]), 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.
CHECKING AND ADDING POWER STEERING
FLUID
Check the power steering fluid. Refer to the
Scheduled Maintenance Guide for the service
interval schedules. If adding fluid is necessary, use
only MERCONtAT F.
Maintenance and care
144