1999 FORD E-450 light

your vehicle including both Gross Vehicle Weight and Front and Rear
Gross Axle Weight Rating limits. Under no circumstance should these
limitations be exceeded. Exceeding any vehicle weight rating limitation
could result in serious damage to the vehicle and/or personal injury.
Calculating the load your vehicle can carry/tow
1. Use the appropriate maximum gross combined weight rating (GCWR)
chart to find the maximum GCWR for your type engine and rear axle
ratio.
2. Weigh your vehicle as you customarily operate the vehicle without
cargo. To obtain correct weights, try taking your vehicle to a shipping
company or an inspection station for trucks.
3. Subtract your loaded vehicle weight from the maximum GCWR on the
following charts. This is the maximum trailer weight your vehicle can tow
and must fall below the maximum shown under maximum trailer weight
on the chart.
DRIVING THROUGH WATER
Do not drive quickly through standing water, especially if the depth is
unknown. Traction or brake capability may be limited and if the ignition
system gets wet, your engine may stall. Water may also enter your
engine's air intake and severely damage your engine.
If driving through deep or standing water is unavoidable, proceed very
slowly. Never drive through water that is higher than the bottom of the
hubs.
Once through the water, always try the brakes. Wet brakes do not stop
the vehicle as effectively as dry brakes. Drying can be improved by
moving your vehicle slowly while applying light pressure on the brake
pedal.
Driving through deep water where the transmission is submerged
may allow water into the transmission and cause internal
transmission damage.
TRAILER TOWING
Refer to7.3 Liter Power Stroke Direct Injection Turbo Diesel Owner's
Guide Supplementfor diesel engine towing information.
Your vehicle may tow a class I, II or III trailer provided the maximum
trailer weight is less than or equal to the maximum trailer weight listed
for your engine and rear axle ratio on the following charts.
Driving
113
ProCarManuals.com

HAZARD LIGHTS CONTROL
Use only in an emergency to warn traffic of vehicle breakdown,
approaching danger, etc. The hazard flashers can be operated when the
ignition is off.
²The hazard lights control is
located on top of the steering
column.
²Depress hazard lights control to
activate all hazard flashers
simultaneously.
²Depress control again to turn the
flashers off.
FUEL PUMP SHUT-OFF SWITCH
After a collision, if the engine cranks but does not start, the fuel pump
shut-off switch may have been activated. The shut-off switch is a device
intended to stop the electric fuel pump when your vehicle has been
involved in a substantial jolt.
1. Turn the ignition to the OFF position.
2. Check the fuel system for leaks.
3. If no fuel leak is apparent, reset the fuel pump shut-off switch by
pushing in the reset button.
4. Turn the ignition to the ON position. Pause for a few seconds and
return the key to the OFF position.
5. Make a further check for leaks in the fuel system.
Roadside emergencies
123
ProCarManuals.com

The fuses are coded as follows.
Fuse/Relay
LocationFuse Amp
RatingDescription
1 20A RABS/4WABS Module
2 15A Brake Warning Diode/Resistor, Instrument
Cluster, Warning Chime, 4WABS Relay,
Warning Indicators
3 15A Main Light Switch, RKE Module, Radio
4 15A Power Locks w/RKE, Illuminated Entry,
Warning Chime, Modified Vehicle, Power
Mirrors, Main Light Switch, Courtesy Lamps
5 20A RKE Module, Power Lock Switches,
Memory Lock, Power Locks with RKE
6 10A Shift Interlock, Speed Control, DRL Module
7 10A Multi-Function Switch, Turn Signals
1234
5
7
689101142
43
44 13 12 14
15 16 17
19 18
2021 22 23
25 24
26 27 28 29
31 30 32 33 3435
37
3638 3940
41
Roadside emergencies
127
ProCarManuals.com

Fuse/Relay
LocationFuse Amp
RatingDescription
8 30A Radio Capacitor(s), Ignition Coil, PCM
Diode, PCM Power Relay, Fuel Heater,
Glow Plug Relay (Diesel Only)
9 30A Wiper Control Module, Windshield Wiper
Motor
10 20A Main Light Switch, (External Lamps)
Multi-Function Switch (Flash-to-pass)
11 15A Brake Pressure Switch, Multi-Function
Switch (Hazards), RABS, Brake Pedal
Position Switch
12 15A Transmission Range (TR) Sensor, Auxiliary
Battery Relay
13 15A Blend Door Actuator, Function Selector
Switch
14 5A Instrument Cluster (Air Bag and Charge
Indicator)
15 5A Trailer Battery Charge Relay
16 30A Power Seats
17 Ð Not Used
18 Ð Not Used
19 10A Air Bag Diagnostic Monitor
20 5A Overdrive Cancel Switch
21 30A Power Windows*
22 15A Memory Power Radio
23 20A Cigar Lighter, Data Link Connector (DLC)
24 5A Illuminated Entry Module
25 10A Left Headlamp (Low Beam)
26 Ð Not Used
27 5A Radio
28 25A Power Plug
29 Ð Not Used
30 15A Headlamps (High Beam Indicator), DRL10A
Roadside emergencies
128
ProCarManuals.com

Fuse/Relay
LocationFuse Amp
RatingDescription
14 30A Trailer Running Lamps Relay, Trailer
Backup Lamps Relay
15 40A Main Light Switch
16 50A RKE Module, Auxiliary Blower Motor Relay
17 30A Fuel Pump Relay, IDM (Diesel)
18 60A I/P Fuses 40, 41
19 60A 4WABS Module
20 20A Electric Brake Controller
21 50A Modified Vehicle Power
22 40A Trailer Battery Charge Relay (Modified
Vehicles Only)
23 60A Ignition Switch
24 Ð Not Used
25 20A NGV Module
26 10A Generator/Voltage Regulator (Diesel Only)
27 15A DRL Module, Horn Relay
28 Ð PCM Diode
29 Ð Not Used
A Ð Not Used
B Ð Not Used
C Ð Trailer Backup Lamps Relay
D Ð Trailer Running Lamps Relay
E Ð Trailer Running Lamps Relay
F Ð IDM Relay
G Ð PCM Relay
H Ð Blower Motor Relay
J Ð Horn Relay
K Ð Fuel Pump Relay, IDM Relay (Diesel)
Relays
Relays are located in the power distribution box and should be replaced
by qualified technicians.
Roadside emergencies
131
ProCarManuals.com

Connecting the jumper cables
1. Connect the positive (+) booster cable to the positive (+) terminal of
the discharged battery.
Note:In the illustrations,lightning boltsare used to designate the
assisting (boosting) battery.
2. Connect the other end of the positive (+) cable to the positive (+)
terminal of the assisting battery.
+–+–
+–+–
Roadside emergencies
140
ProCarManuals.com

SERVICE RECOMMENDATIONS
To help you service your vehicle:
²We highlight do-it-yourself items in the engine compartment for easy
location.
²We provide a ªService Guideº which makes tracking routine service
easy.
If your vehicle requires professional service, your dealership can provide
necessary parts and service. Check your ªWarranty Guideº to find out
which parts and services are covered.
Use only recommended fuels, lubricants, fluids and service parts
conforming to specifications. Motorcraft parts are designed and built to
provide the best performance in your vehicle.
PRECAUTIONS WHEN SERVICING YOUR VEHICLE
Be especially careful when inspecting or servicing your vehicle.
²Do not work on a hot engine.
²When the engine is running, make sure that loose clothing, jewelry or
long hair does not get caught up in moving parts.
²Do not work on a vehicle with the engine running in an enclosed
space, unless you are sure you have enough ventilation.
²Keep all lit cigarettes, open flames and other lit material away from
the battery and all fuel related parts.
If you disconnect the battery, the engine must ªrelearnº its idle
conditions before your vehicle will drive properly, as explained inBattery
in this chapter.
Working with the engine off
1. Set the parking brake and ensure the gearshift is securely latched in P
(Park).
2. Turn off the engine and remove the key.
3. Block the wheels to prevent the vehicle from moving unexpectedly.
Working with the engine on
1. Set the parking brake and ensure the gearshift is securely latched in P
(Park).
2. Block the wheels to prevent the vehicle from moving unexpectedly.
Maintenance and care
145
ProCarManuals.com

WINDSHIELD WASHER FLUID
Checking and adding washer fluid
Check the washer fluid whenever
you stop for fuel. The reservoir is
highlighted with a
symbol.
If the level is low, add enough fluid
to fill the reservoir. In very cold
weather, do not fill the reservoir all
the way.
Do not put engine coolant in the container for the windshield
washer fluid.
ENGINE COOLANT
Check the level of the engine
coolant in the reservoir. Refer to the
maintenance guide and or service
guide for service interval schedules.
Be sure to read and understand
Precautions when servicing your
vehiclein this chapter.
COLD FILL LEVEL
Maintenance and care
151
ProCarManuals.com