2003 FORD THUNDERBIRD engine coolant

For vehicles with overflow coolant systems with a non-pressurized cap
on the coolant recovery system, add coolant to the coolant recovery
reservoir when the engine is cool. Add the proper mixture of coolant and
water to the“cold full”level. For all other vehicles, which have a coolant
degas system with a pressurized cap, or if it is necessary to remove the
coolant pressure relief cap on the radiator of a vehicle with an overflow
system, follow these steps to add engine coolant.
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 (left) 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 within the“cold fill range”or the“cold full”level 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. (Cap must be tightly
installed to prevent coolant loss.)
After any coolant has been added, check the coolant concentration, refer
toChecking Engine Coolantsection. 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.
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 liter (1.0 quart) of engine coolant per
month, have your dealer check the engine cooling system. Your cooling
system may have a leak. Operating an engine with a low level of coolant
can result in engine overheating and possible engine damage.
Maintenance and Specifications
164

Recycled engine coolant
Ford Motor Company recommends the use of a recycled engine coolant
produced by Ford-approved processes in vehicles originally equipped
with Motorcraft Premium Engine Coolant (green-colored). However, not
all coolant recycling processes produce coolant that meets Ford
specification ESE-M97B44–A. Use of such coolant may harm the engine
and cooling system components.
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.
Coolant refill capacity
To find out how much fluid your vehicle’s cooling system can hold, refer
toRefill capacitiesin this chapter.
Fill your engine coolant reservoir as outlined inAdding engine coolant
in this chapter.
Severe climates
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 will provide adequate freeze protection.
Never increase the engine coolant concentration above 60%
(protection to–60°F). At a level over 60%, your engine could overheat
and become damaged.
If you drive in extremely hot climates, it is still necessary to maintain the
coolant concentration at 50/50 coolant and water.Do not allow the
coolant concentration to fall below 40% coolant.At a concentration
less than 40%, the corrosion protection to your engine and cooling
components may be compromised and permanent damage may result.
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.
Maintenance and Specifications
165

How fail-safe cooling works
If the engine begins to overheat:
•The engine coolant temperature
gauge will move to the H (hot)
area.
•The
symbol will
illuminate.
•The
symbol will illuminate.
•The
symbol 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.
Continued operation will increase the engine temperature and the engine
will completely shut down, causing steering and braking effort to
increase.
Once the engine temperature cools, the engine can be re-started. Take
your vehicle to a service facility as soon as possible to minimize engine
damage.
When fail-safe mode is activated
You have limited engine power when in the fail-safe mode, so drive the
vehicle with caution. The vehicle will not be able to maintain high-speed
operation and the engine will run rough. Remember that the engine is
capable of completely shutting down automatically to prevent engine
damage, therefore:
1. Pull off the road as soon as safely possible and turn off the engine.
2. Arrange for the vehicle to be taken to a service facility.
3. If this is not possible, wait a short period for the engine to cool.
4. Check the coolant level and replenish if low.
Never remove the coolant reservoir cap while the engine is
running or hot.
5. Re-start the engine and take your vehicle to a service facility.
Maintenance and Specifications
166

Allow the vehicle to sit for at least eight hours without starting the
engine. Then, start the engine and complete the above driving cycle. The
engine must warm up to its normal operating temperature. Once started,
do not turn off the engine until the above driving cycle is complete.
POWER STEERING FLUID
Refer to the scheduled maintenance guide for the service interval
schedules. If adding fluid is necessary, use only MERCONAT F.
1. Start the engine and let it run
until it reaches normal operating
temperature (the engine coolant
temperature gauge indicator will be
near the center of the normal area
between H and C).
2. While the engine idles, turn the
steering wheel left and right several
times.
3. Turn the engine off.
4. Check the fluid level in the
reservoir. It should be between the
MIN and MAX lines. Do not add
fluid if the level is in this range.
5. If the fluid is low, add fluid in
small amounts, continuously
checking the level until it reaches
the range between the MIN and
MAX lines. Be sure to put the cap
back on the reservoir.
BRAKE FLUID RESERVOIR
The fluid level will drop slowly as
the brakes wear, and will rise when
the brake components are replaced.
Fluid levels between the“MIN”and
“MAX”lines are within the normal
operating range, there is no need to
add fluid. If the fluid levels are
outside of the normal operating range, the performance of your brake
system could be compromised, seek service from your dealer
immediately.
MAX
MIN
MAX
MIN
M
A
X
M
IN
Maintenance and Specifications
176

REFILL CAPACITIES
Fluid Ford Part Name Application Capacity
Brake fluid Motorcraft High
Performance DOT
3 Motor Vehicle
Brake Fluid
1
All Fill to MAX line
on reservoir
Engine oil
(includes filter
change)Motorcraft SAE
5W-20 Premium
Synthetic Blend
Motor Oil3.9L-4V V8
engine6.2L (6.5 quarts)
Engine coolant
2Motorcraft
Premium Engine
Coolant
(green-colored)
orMotorcraft
Premium Gold
Engine Coolant
(yellow-colored)3.9L-4V V8
engine11.3L (11.9
quarts)
Power steering
fluidMotorcraft
MERCONAT FAll Fill to MAX line
on reservoir
Rear axle
3Motorcraft SAE
75W-90 Fuel
Efficient High
Performance
Synthetic Rear
Axle LubricantAll 1.2–1.3L (2.5–2.7
pints)
Fuel tank N/A All 68.2L (18.0
gallons)
Transmission
fluid
4Motorcraft
MERCONVATFAutomatic
(5R55S)11.2L (11.9
quarts)5
Windshield
washer fluidMotorcraft
Premium
Windshield
Washer
ConcentrateAll Fill to line on
reservoir
Maintenance and Specifications
183

Item Ford part
nameFord part
numberFord specification
Engine coolant Motorcraft
Premium Engine
Coolant
(green-colored)VC-4–A(US)or
CXC-10 (CanadaESE-M97B44–A
Motorcraft
Premium Gold
Engine Coolant
(yellow-colored)VC-7-A (VC-7–Bin
Oregon)WSS-M97B51-A1
Engine oil Motorcraft SAE
5W-20 Premium
Synthetic Blend
Motor OilXO-5W20-QSP WSS-M2C153-H with
API Certification
Mark
Lock cylinders Motorcraft
Penetrating and
Lock LubricantXL-1 none
Power steering
fluidMotorcraft
MERCONAT FXT-2-QDX MERCON
Rear Axle
LubricantMotorcraft SAE
75W-90 Fuel
Efficient High
Performance
Synthetic Rear
Axle Lube
2
XY-75W90–QFEHP ES-3W4W-19A508–AA
Automatic
transmission
fluidMotorcraft
MERCONVATF
3
XT-5-QM MERCONV
Windshield
washer fluidMotorcraft
Premium
Windshield
Wa s h e r
ConcentrateZC-32-A WSB-M8B16–A2
1Use only brake fluids certified to meet Ford specifications. DOT 3 fluid
is recommended. However, if DOT 3 is not available, DOT 4 fluid can be
used.
2Ford design rear axles contain a synthetic lubricant that does not
require changing unless the axle has been submerged in water.
3Ensure the correct automatic transmission fluid is used. MERCONand
MERCONV are not interchangeable. DO NOT MIX MERCONand
MERCONV. Refer to the scheduled maintenance guide to determine
the correct service interval.
Maintenance and Specifications
185

A
Accessorydelay..........................37
Air bag supplemental restraint
system ....................................80, 88
and child safety seats ..............81
description ..........................80, 88
disposal ......................................91
driver air bag ......................82, 89
indicator light .....................83, 90
operation .............................82, 89
passenger air bag ...............82, 89
passenger deactivation
switch ........................................84
side air bag ................................88
Air cleaner filter .......177–178, 182
Air conditioning ..........................19
Antifreeze
(see Engine coolant) ................161
Anti-lock brake system
(see Brakes) ......................105–106
Anti-theft system ........................65
arming the system ....................65
disarming a triggered system ..65
Audio system (see Radio) .........14
Automatic transmission
driving an automatic
overdrive .................................109
fluid, adding ............................177
fluid, checking ........................177
fluid, refill capacities ..............183
fluid, specification ..................186
Auxiliary power point .................36
Axle
lubricant specifications ..184, 186
refill capacities ........................183
B
Battery .......................................159acid, treating emergencies .....159
jumping a disabled battery ....132
maintenance-free ....................159
replacement, specifications ...182
servicing ..................................159
BeltMinder ...................................75
Brakes ........................................105
anti-lock ...........................105–106
anti-lock brake system (ABS)
warning light ...........................105
fluid, checking and adding ....176
fluid, refill capacities ..............183
fluid, specifications .........184, 186
lubricant specifications ..184, 186
parking ....................................106
shift interlock ..........................108
Bulbs ............................................28
C
Capacities for refilling fluids ....183
Cassette tape player ...................14
Cell phone use ............................54
Certification Label ....................187
Changing a tire .........................127
Child safety restraints ................91
child safety belts ......................91
Child safety seats ........................94
attaching with tether straps ....98
in front seat ..............................95
in rear seat ................................95
LATCH .....................................100
Cleaning your vehicle
engine compartment ..............149
instrument panel ....................151
interior .............................151–152
interior trim ............................151
plastic parts ............................150
washing ....................................148
Index
191

waxing.....................................148
wheels ......................................149
wiper blades ............................150
Climate control (see Air
conditioning or Heating) ............19
Console ........................................54
Controls
power seat .................................68
steering column ........................42
Convertible ..................................43
cleaning .............................47, 151
installation of the boot .............44
lowering the convertible top ...43
raising the convertible top ......45
Coolant
checking and adding ..............161
refill capacities ................165, 183
specifications ..................184, 186
Cruise control
(see Speed control) ....................39
Customer Assistance ................116
Ford accessories for your
vehicle .....................................153
Ford Extended Service
Plan ..........................................141
Getting assistance outside the
U.S. and Canada .....................145
Getting roadside assistance ...116
Getting the service you
need .........................................139
Ordering additional owner’s
literature .................................146
The Dispute Settlement
Board .......................................142
Utilizing the
Mediation/Arbitration
Program ...................................144D
Daytime running lamps
(see Lamps) ................................25
Defrost
rear window ..............................22
Dipstick
automatic transmission
fluid ..........................................177
engine oil .................................156
Doors
lubricant specifications ..........184
Driving under special
conditions ..................................113
through water .........................113
E
Emergencies, roadside
jump-starting ..........................132
Emission control system ..........174
Engine ........................................186
cleaning ...................................149
coolant .....................................161
fail-safe coolant ......................165
idle speed control ...................159
lubrication specifications ......184,
186
refill capacities ........................183
service points ..........................155
Engine block heater .................104
Engine oil ..................................156
checking and adding ..............156
dipstick ....................................156
filter, specifications ........158, 182
recommendations ...................158
refill capacities ........................183
specifications ..................184, 186
Exhaust fumes ..........................105
Index
192