1999 FORD F250 SUPER DUTY service indicator

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.
Service engine soon (Federal only)
Your vehicle is equipped with a
computer that monitors the engine’s
emission control system. This
system is commonly known as the
On Board Diagnostics System (OBD
I). This OBD I system protects the
environment by ensuring that your vehicle continues to meet
government emission standards. The OBD I system also assists the
service technician in properly servicing your vehicle.
TheCheck Engine/Service Engine Soonindicator light illuminates
when the ignition is first turned to the ON position to check the bulb. If
it comes on after the engine is started, one of the engine’s emission
control systems may be malfunctioning. The light may illuminate without
a driveability concern being noted. The vehicle will usually be drivable
and will not require towing.
0
000000000
MPH20km/h
406080
100
120
140
160
010 20304050
60
70
80
90
100
LOW
FUEL
DOOR
AJAR BRAKE
LOW
RANGE
4 X 4
!ABS+ -
LEF
H
RPM1000X0123
5
6 4
PRN 218C 18
H
D
FUEL FILL
SERVICE
ENGINE
SOON
LOW
FUEL
SERVICE
ENGINE
SOON
Instrumentation
8

What you should do if the Check Engine/Service Engine Soon light
illuminates
Light turns on solid:
This means that the OBD I system has detected a malfunction.
Temporary malfunctions may cause yourService Engine Soonlight to
illuminate. Examples are:
1. The vehicle has run out of fuel. (The engine may misfire or run
poorly.)
2. Poor fuel quality or water in the fuel.
These and other temporary malfunctions can be corrected by filling the
fuel tank with good quality fuel. After three driving cycles without these
or any other temporary malfunctions present, theCheck Engine/Service
Engine Soonlight should turn off. (A driving cycle consists of a cold
engine startup followed by mixed city/highway driving.) No additional
vehicle service is required.
If theCheck Engine/Service Engine Soonlight remains on, have your
vehicle serviced at the first available opportunity.
Under engine misfire conditions, excessive exhaust temperatures
could damage the catalytic converter, the fuel system, interior
floor coverings or other vehicle components, possibly causing a fire.
Service engine soon (California only)
Your vehicle is equipped with a
computer that monitors the engine’s
emission control system. This
system is commonly known as the
On Board Diagnostics System (OBD
II). This OBD II system protects the
environment by ensuring that your vehicle continues to meet
government emission standards. The OBD II system also assists the
service technician in properly servicing your vehicle.
TheService Engine Soonindicator light illuminates when the ignition is
first turned to the ON position to check the bulb. If it comes on after the
engine is started, one of the engine’s emission control systems may be
malfunctioning. The light may illuminate without a driveability concern
being noted. The vehicle will usually be drivable and will not require
towing.
SERVICE
ENGINE
SOON
Instrumentation
9

Transmission control indicator light (TCIL) (if equipped)
The word OFF located on the end
of the gearshift lever is the
transmission control indicator light
(TCIL).
The TCIL may flash steadily if a
malfunction is detected. If the TCIL is flashing, contact your Ford dealer
as soon as possible. If this condition persists, damage to the transmission
could occur.
Safety belt
Momentarily illuminates when the
ignition is turned to the ON position
to remind you to fasten your safety
belts. For more information, refer to
theSeating and safety restraints
chapter.
Brake system warning
Momentarily illuminates when the
ignition is turned to the ON
position, the engine is off and the
parking brake is engaged. If the
brake warning lamp does not
illuminate at this time, seek service immediately. Illumination after
releasing the parking brake indicates low brake fluid level and the brake
system should be inspected immediately.
Anti-lock brake system (ABS)
Momentarily illuminates when the
ignition is turned to the ON position
and the engine is off. If the light
remains on, continues to flash or
fails to illuminate, have the system
serviced immediately. With the ABS light on, the anti-lock brake system
is disabled and normal braking is still effective unless the brake warning
light also remains illuminated with parking brake released.
OVERDRIVE
ABS
Instrumentation
11

Turn signal
Illuminates when the left or right
turn signal or the hazard lights are
turned on. If one or both of the
indicators stay on continuously or
flash faster, check for a burned-out
turn signal bulb. Refer toExterior bulbsin theMaintenance and care
chapter.
High beams
Illuminates when the high beam
headlamps are turned on.
Charging system
Illuminates when the ignition is
turned to the ON position and the
engine is off. The light also
illuminates when the battery is not
charging properly, requiring
electrical system service.
Four wheel drive low (if equipped)
This light momentarily illuminates
when the ignition is turned to ON.
Illuminates when four-wheel drive
low is engaged. If the light continues
to flash have the system serviced.
Four wheel drive indicator (if equipped)
This light momentarily illuminates
when the ignition is turned to ON.
Illuminates when 4x4 range is
engaged.
LOW
RANGE
4x4
Instrumentation
12

Mode control
Each press of the MODE control will
display a different feature as follows:
Average fuel economy.The
display will indicate the vehicle’s
average fuel economy in liters/100
km (or miles/gallon) since the
average fuel economy was last reset.
If you calculate your average fuel
economy by dividing liters of fuel
used by 100 kilometers traveled
(miles traveled by gallons used), your figure may be different than
displayed for the following reasons:
•your vehicle was not perfectly level during fill-up
•differences in the automatic shut-off points on the fuel pumps at
service stations
•variations in top-off procedure from one fill-up to another
•rounding of the displayed values to the nearest 0.1 liter (gallon)
To reset the average fuel economy:
1. Press the MODE control repeatedly until average fuel economy is
displayed (this is the only resettable display).
2. Press the E/M and MODE
controls simultaneously. The display
will illuminate the “AVG” indicator.
While the indicator is lit, release
both controls to reset the average
fuel economy.
Fuel range.This displays the approximate number of kilometers (miles)
left to drive before the fuel tank is empty. The indicated distance to
empty may be inaccurate:
•with sustained, drastic changes in fuel economy (such as trailer
towing), but will eventually recover.
MODE
E/M
MODE
E/M
Instrumentation
18

•automatic hub locks can be
manually overridden by rotating
the hub lock control from AUTO
to LOCK.
Manual 4x4 system (if equipped)
The 4WD system is engaged or
disengaged by rotating the front
wheel hub lock control from FREE
to LOCK, then manually engaging
the transfer case with a
floor-mounted shifter.
4WD system indicator lights
The 4WD system indicator lights illuminate only under the following
conditions. If these lights illuminate during normal driving, have your
vehicle serviced.
•4x4-illuminates when the
ignition is turned on and when
4H (4x4 High) is selected.
•LOW RANGE–illuminates when
the ignition is turned on or when
4L (4x4 Low) is selected.
Using a manual 4WD system (if equipped)
2H (2WD High)– Power to rear axle only.
4H (4WD High)– Power to front and rear axles.
N (Neutral)– No power to either axle.
4L (4WD Low)– Power to front and rear axles at reduced speed.
4x4
Driving
126

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) (automatic transmission) or 1 (First) (manual transmission).
4. Open the hood. Protect yourself from engine heat.
5. Locate and carefully remove the
engine oil level indicator (dipstick).
6. Wipe the indicator clean. Insert the indicator fully, then remove it
again.
•If the oil level isbetween the MIN and MAX marks,the oil level is
acceptable.DO NOT ADD OIL.
•If the oil level is below the MIN
mark, add enough oil to raise the
level within the MIN-MAX range.
•Oil levels above the MAX mark may cause engine damage. Some oil
must be removed from the engine by a service technician.
7. Put the indicator back in and ensure it is fully seated.
MIN MAX
Maintenance and care
173

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.
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.
H
C
Maintenance and care
181