Page 227 of 280
IDENTIFYING COMPONENTS IN THE ENGINE COMPARTMENT
3.9L/4.2L V6 engines
1. Brake fluid reservoir
2. Air filter assembly
3. Power distribution box
4. Battery
5. Automatic transmission fluid dipstick
6. Engine oil dipstick
7. Engine oil filler cap
8. Windshield washer fluid reservoir
9. Engine coolant reservoir
10. Power steering fluid reservoir
2004 Windstar(win)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
227
Page 228 of 280

WINDSHIELD WASHER FLUID
Add fluid to fill the reservoir if the
level is low. In very cold weather, do
not fill the reservoir completely.
Only use a washer fluid that meets
Ford specification WSB-M8B16–A2.
Refer toLubricant specifications
in this chapter.
State or local regulations on volatile organic compounds may restrict the
use of methanol, a common windshield washer antifreeze additive.
Washer fluids containing non-methanol antifreeze agents should be used
only if they provide cold weather protection without damaging the
vehicle’s paint finish, wiper blades or washer system.
If you operate your vehicle in temperatures below 4.5° C (40°
F), use washer fluid with antifreeze protection. Failure to use
washer fluid with antifreeze protection in cold weather could result in
impaired windshield vision and increase the risk of injury or accident.
Note:Do not put washer fluid in the engine coolant reservoir. Washer
fluid placed in the cooling system may harm engine and cooling system
components.
Checking and adding washer fluid for the liftgate
Washer fluid for the liftgate is supplied by the same reservoir as the
windshield.
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.
2. Turn the engine off and wait a few minutes for the oil to drain into the
oil pan.
3. Set the parking brake and ensure the gearshift is securely latched in P
(Park).
2004 Windstar(win)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
228
Page 235 of 280

Note:Automotive fluids are not interchangeable; do not use engine
coolant, antifreeze or windshield washer fluid outside of its specified
function and vehicle location.
Adding engine coolant
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.
•Add Motorcraft Premium Gold Engine Coolant
(yellow-colored), VC-7–A (VC-7–B in Oregon), 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 an orange-colored, extended life coolant such
as Motorcraft Speciality Orange Engine Coolant, VC-2 (US) or
CXC-209 (Canada), meeting Ford specification WSS-M97B44–D
with the factory-filled coolant.Mixing Motorcraft Speciality Orange
Engine Coolant or any orange-colored extended life product 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.
•Do not use alcohol, methanol, 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.
2004 Windstar(win)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
235
Page 264 of 280

REFILL CAPACITIES
Fluid Ford Part
NameApplication 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)
3
Motorcraft SAE
5W-20 Premium
Synthetic Blend
Motor Oil (US)
Motorcraft SAE
5W-20 Super
Premium Motor
Oil (Canada)3.9L engine 4.7L (5.0
quarts)
4.2L engine 4.7L (5.0
quarts)
Engine coolant
2Motorcraft
Premium Gold
Engine Coolant
(yellow-colored)Without rear
heater14.0L (14.8
quarts)
With rear heater 15.0L (15.9
quarts)
Power steering
fluidMotorcraft
MERCONAT FAll Fill to line on
reservoir
Fuel tank N/A All 98.4L (26.0
gallons)
Automatic
transaxle fluidMotorcraft
MERCONV
AT FAll 13.0L (13.7
quarts)
Windshield
washer fluidMotorcraft
Premium
Windshield
Washer
ConcentrateAll Fill to line on
reservoir
1Use only brake fluids certified to meet Ford specifications. Refer to
Lubricant Specificationsin this chapter. DOT 3 fluid is recommended.
However, if DOT 3 is not available, DOT 4 fluid can be used.
2Add the coolant type originally equipped in your vehicle.
3Use of synthetic or synthetic blend motor oil is not mandatory. Engine
oil need only meet the requirements of Ford specification
WSS-M2C153–H and the API Certification mark.
2004 Windstar(win)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
264
Page 266 of 280

Item Ford part
nameFord part
numberFord
specification
Automatic
transaxle
(4F50N)Motorcraft
MERCONV
AT F
2
XT-5-QM MERCONV
Disc brake
caliper railsMotorcraft
Silicone Brake
Caliper Grease
and Dielectric
CompoundXG-3 ESE-M1C171-A
Constant
velocity jointsMotorcraft CV
Joint Grease
(High Temp.)XG-5 WSS-MIC258-A1
Windshield
washer fluidMotorcraft
Premium
Windshield
Washer
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.
2Ensure 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.
ENGINE DATA
Engine 3.9 L OHV V6 engine 4.2L OHV V6 engine
Cubic inches 232 256
Required fuel 87 octane 87 octane
Firing order 1-4-2-5-3-6 1-4-2-5-3-6
Spark plug gap 1.3-1.4 mm
(0.052-0.056 inch)1.3-1.4 mm
(0.052-0.056 inch)
Ignition system EDIS EDIS
Compression ratio 9.36:1 9.27:1
2004 Windstar(win)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
266
Page 279 of 280
W
Warning lights (see Lights) .......10
Washer fluid ..............................228
Water, Driving through .............176
Windows
power .........................................63rear wiper/washer .....................52
Windshield washer fluid and
wipers ..........................................52
checking and adding fluid .....228
liftgate reservoir .....................228
replacing wiper blades .............53
Wrecker towing .........................209
2004 Windstar(win)
Owners Guide (post-2002-fmt)
USA English(fus)
Index
279