2003 FORD EXPEDITION low oil pressure

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. If the gauge enters the red section, the oil
pressure/engine coolant andCheck Engine/Service Engine Soon
indicators illuminate, refer toWhat you should know about fail-safe
coolingin theMaintenance and specificationschapter.
Engine oil pressure gauge
Indicates engine oil pressure. At
normal operating temperature, the
needle will be in the normal range
(the area between the“L”and“H”);
if the needle goes below the normal
range, stop the vehicle as soon as
safely possible and switch off the
engine immediately. Check the oil
level. Add oil if needed (refer to
Engine oilin theMaintenance
and specificationschapter). If the
oil level is correct, have your vehicle checked at your dealership or by a
qualified technician.
Battery voltage gauge
Indicates battery voltage. If the
pointer moves and stays outside the
normal operating range, have the
vehicle’s electrical system checked
as soon as possible.
Instrument Cluster
16

System check
Selecting this function from the
SETUP menu causes the message
center to cycle through each of the
systems being monitored. For each
of the monitored systems, the
message center will indicate either an OK message or a warning message
for three seconds.
Pressing the RESET control cycles the message center through each of
the systems being monitored.
The sequence of the system check report and how it appears in the
message center is as follows:
1. FUEL LEVEL
2. WASHER FLUID LEVEL
3. ADVANCETRAC(if equipped)
4. ENGINE TEMP
5. OIL PRESSURE
6. TIRE PRESSURE SYSTEM (if equipped)
7. BRAKE FLUID LEVEL
8. CHARGING SYSTEM
System warnings
System warnings alert you to possible problems or malfunctions in your
vehicle’s operating systems.
In the event of a multiple warning situation, the message center will
cycle the display to show all warnings by displaying each one for 4
seconds.
The message center will display the last selected feature if there are no
more warning messages. This allows you to use the full functionality of
the message center after you acknowledge the warning by pressing the
RESET control and clearing the warning message.
Warning messages that have been reset are divided into three categories:
•They will reappear on the display every minute from the time of reset.
•They will reappear on the display ten minutes from the reset.
•They will not reappear until an ignition OFF-ON cycle has been
completed.
Driver Controls
120

This acts as a reminder that these warning conditions still exist within
the vehicle.
Warning display Status
Check backup aid (if equipped) Warning displays when R
(reverse) gear is selected.
PRNDL error no backup aid (if equipped)
AdvTrac ON (if equipped) Displays for 4 seconds
AdvTrac OFF (if equipped)
Door ajar Warning returns after 10
minutes
Liftgate ajar
Low fuel level
Check charging system
Low brake fluid level
Low oil pressure
Check engine temperature
Reduced engine power
Stop engine safely
Warning-tire very low (if equipped)
Tire pressure system fault (if equipped) Warning returns after the
ignition key is turned
from OFF to ON. Check tire pressure (if equipped)
Check spare tire pressure (if equipped)
Tire pressure sensor fault (if equipped)
Low washer fluid level
Check AdvTrac (if equipped)
AdvTrac OFF T/C ON (if equipped)
Check fuel cap
CHECK BACKUP AID (if equipped).Displayed when the
transmission is in R (Reverse).
PRNDL ERROR NO BACKUP AID (if equipped).Displayed when the
transmission is in R (Reverse) and the Reverse Sensing System is
disabled. Refer toReverse Sensing Systemin this section to enable.
ADVTRAC ON (if equipped).Displayed when the AdvanceTracis
ON.
ADVTRAC OFF (if equipped).Displayed when the AdvanceTracis
OFF.
DOOR AJAR.Displayed when a door is not completely closed.
Driver Controls
121

when the engine is operating at normal speeds, have the electrical
system checked as soon as possible.
LOW BRAKE FLUID LEVEL.
Indicates the brake fluid level is low and
the brake system should be inspected immediately. Refer toChecking and
adding brake fluidin theMaintenance and specificationschapter.
LOW OIL PRESSURE.Displayed when the engine oil pressure is low. If
this warning message is displayed, check the level of the engine oil.
Refer toEngine oilin theMaintenance and specificationschapter for
information about adding engine oil. If the oil level is OK and this
warning persists, shut down the engine immediately and contact your
dealership for service.
LOW WASHER FLUID LEVEL.
Indicates the washer fluid reservoir is
less than one quarter full. Check the washer fluid level. Refer to
Windshield washer fluidin theMaintenance and specificationschapter.
CHECK ADVTRAC (if equipped).Displayed when the AdvanceTrac
system is not operating properly. If this message is displayed on the
message center the AdvanceTracsystem will be partially operable. If
this warning stays on while the engine is running, contact your dealer for
service as soon as possible. For further information, refer to
AdvanceTracstability enhancement systemin theDrivingchapter.
ADVTRAC OFF T/C ON (if equipped).Displayed on 4x4 vehicles only
when 4x4 Low Range is selected. In this mode, the stability enhancement
portion of the AdvanceTracis disabled, but the traction enhancement
feature remains enabled. For further information, refer to
AdvanceTracstability enhancement systemin theDrivingchapter.
CHECK FUEL CAP.Displayed when the fuel filler cap is not properly
installed. Check the fuel filler cap for proper installation. Refer toFuel
filler capin theMaintenance and specificationschapter.
TIRE PRESSURE SYSTEM OFF (if equipped).Displayed when the
tire pressure monitoring system is turned off. Only your dealer can turn
the system on or off. It is recommended that the tire pressure
monitoring system is always turned ON.
DATA ERR.These messages indicate improper operation of the vehicle
network communication between electronic modules.
•Fuel computer
•Charging system
•Door sensor
•Washer fluid•Brake fluid
•Compass
•Outside temperature
•Engine sensor
Driver Controls
123

Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse Panel
Description
14 15A* Climate control blend door actuator,
Daytime Running Lamps (DRL) relays,
Digital Transmission Range Sensor (DTRS)
back-up lamp
15 5A* AdvanceTracswitch, Instrument cluster
16 10A* ABS module
17 15A* Foglamps
18 10A* Electrochromic mirror, Auxiliary A/C,
Climate-controlled seats module,
Temperature solenoid, Turn signal flasher,
Sunload sensor, Electronic park brake
relay coil
19 10A* Restraints Control Module (RCM)
20 30A* Air suspension module (air spring
solenoids and height sensors), 4x4 module
21 15A* Instrument cluster (interior lamps),
Interior lamps, Electronic park brake relay,
Tire Pressure Monitoring System (TPMS)
22 10A* Door lock switch illumination, Moonroof
switch illumination, Radio (delayed
accessory signal), Flip window switch
23 10A* RH low beam
24 15A* Battery saver relay, Front map/Dome lamp,
2nd row dome/map lamp, Glove
compartment lamp, Cargo lamp, Rail
lamps, Vanity mirror lamps, Underhood
lamp
25 10A* LH low beam
26 20A* Horn relay, Horns
27 5A* Compass, Reverse sensing system module,
Brake shift interlock (BSI) solenoid,
Overdrive cancel switch, Air suspension
module (Run/Start sense)
Roadside Emergencies
233

•Revving the engine before turning it off may reduce fuel economy.
•Using the air conditioner or defroster may reduce fuel economy.
•You may want to turn off the speed control in hilly terrain if
unnecessary shifting between third and fourth gear occurs.
Unnecessary shifting of this type could result in reduced fuel
economy.
•Warming up a vehicle on cold mornings is not required and may
reduce fuel economy.
•Resting your foot on the brake pedal while driving may reduce fuel
economy.
•Combine errands and minimize stop-and-go driving.
Maintenance
•Keep tires properly inflated and use only recommended size.
•Operating a vehicle with the wheels out of alignment will reduce fuel
economy.
•Use recommended engine oil. Refer toLubricant specificationsin
this chapter.
•Perform all regularly scheduled maintenance items. Follow the
recommended maintenance schedule and owner maintenance checks
found in your vehicle scheduled maintenance guide.
Conditions
•Heavily loading a vehicle or towing a trailer may reduce fuel economy
at any speed.
•Carrying unnecessary weight may reduce fuel economy (as much as
0.4 km/L [1 mpg] is lost for every 180 kg [400 lb] of weight carried).
•Adding certain accessories to your vehicle (for example bug
deflectors, rollbars/light bars, running boards, ski/luggage racks) may
reduce fuel economy.
•Using fuel blended with alcohol may lower fuel economy.
•Fuel economy may decrease with lower temperatures during the first
12–16 km (8–10 miles) of driving.
•Driving on flat terrain offers improved fuel economy as compared to
driving on hilly terrain.
•Transmissions give their best fuel economy when operated in the top
cruise gear and with steady pressure on the gas pedal.
Maintenance and Specifications
287

cleaning ...................................260
coolant .....................................274
fail-safe coolant ......................279
idle speed control ...................272
lubrication
specifications ..................303, 305
refill capacities ........................300
service points ..................267–268
starting after a collision .........228
Engine block heater .................194
Engine oil ..................................269
change oil soon warning,
message center .......................269
checking and adding ..............269
dipstick ....................................269
filter, specifications ........271, 300
recommendations ...................271
refill capacities ........................300
specifications ..................303, 305
Exhaust fumes ..........................194
F
Fail safe cooling ........................279
Floor mats .................................126
Fluid capacities .........................300
Foglamps .....................................81
Four-Wheel Drive
vehicles ................................14, 208
control trac .............................208
description ..............................209
driving off road .......................211
electronic shift ........................210
indicator light .........................208
preparing to drive
your vehicle ............................198
Fuel ............................................280
calculating fuel
economy ..........................116, 285
cap ...........................................282capacity ...................................300
choosing the right fuel ...........283
comparisons with EPA
fuel economy estimates .........288
detergent in fuel .....................284
filling your vehicle
with fuel ..................280, 282, 285
filter, specifications ........284, 300
fuel pump shut-off switch .....228
gauge .........................................17
improving fuel economy ........285
low fuel warning light ..............12
octane rating ...................283, 305
quality ......................................284
running out of fuel .................284
safety information relating
to automotive fuels ................280
Fuses ..................................230–231
G
Garage door opener ..................108
Gas cap (see Fuel cap) ............282
Gas mileage
(see Fuel economy) .................285
Gauges .........................................15
battery voltage gauge ...............16
engine coolant temperature
gauge .........................................15
engine oil pressure gauge ........16
fuel gauge ..................................17
odometer ...................................17
speedometer .............................17
tachometer ................................18
trip odometer ............................18
GAWR (Gross Axle
Weight Rating) ..........................219
calculating ...............................221
definition .................................219
driving with a heavy load ......219
location ....................................219
Index
315

cruise indicator .........................13
door ajar ....................................13
engine oil pressure ...................13
high beam .................................13
low fuel ......................................12
low washer fluid .......................12
overdrive off ..............................14
safety belt .................................12
service engine soon ..................10
speed control ..........................106
turn signal indicator .................13
Limited-slip axle .......................198
Load limits .................................219
GAWR ......................................219
GVWR ......................................219
trailer towing ..........................219
Loading instructions .................221
Locks
childproof ................................128
doors ........................................128
Lubricant specifications ...303, 305
Lumbar support, seats .............143
M
Message center .........................114
english/metric button .............119
system check button ..............120
warning messages ...................120
Mirrors .........................................95
automatic dimming rearview
mirror ......................................100
fold away .................................102
heated ......................................101
programmable
memory ...........................131, 144
side view mirrors
(power) ...................................101
Moon roof ....................................96
Motorcraft parts ................284, 300O
Octane rating ............................283
Odometer .....................................17
Oil (see Engine oil) ..................269
Overdrive ...................................124
P
Panic alarm feature,
remote entry system ................130
Parking brake ............................196
Parts (see Motorcraft parts) ....300
Pedals (see Power
adjustable foot pedals) .............102
Power distribution box
(see Fuses) ...............................231
Power door locks ......................128
Power point .................................97
Power steering ..................197–198
fluid, checking and adding ....289
fluid, refill capacity ................300
fluid, specifications .........303, 305
Power Windows ...........................99
Preparing to drive your
vehicle ........................................198
R
Radio ..........................19, 27, 37–38
Radio reception ...........................56
Rear window defroster ...............80
Relays ........................................230
Remote entry system .......129–130
illuminated entry ....................133
locking/unlocking
doors ........................128–130, 135
Index
317