1999 FORD E-450 weight

Trailer Towing Table
GCWR (Gross Combined Weight Rating)/Trailer Weights
EngineRear
axle
ratioMaximum
GCWR-kg
(lbs.)Trailer weight
range-kg
(lbs.)
(0-Maximum)Maximum
Frontal Area
Of Trailer-m
2
(ft2)
E-Super Duty
6.8L 4.639 072
(20 000)4 536 (10 000) 5.52 (60)
7.3L
(Diesel)4.109 072
(20 000)4 536 (10 000) 5.52 (60)
E-250/350 Stripped Chassis (single rear wheel-124(wheelbase
for E-250 only)
4.2L 4.094 990
(11 000)1 090 (2 400) 5.52 (60)
5.4L 4.105 897
(13 000)1 542 (3 400) 5.52 (60)
6.8L 3.736 804
(15 000)2 540 (5 600) 5.52 (60)
E-350 Stripped Chassis (dual rear wheel)
5.4L 4.105 897
(13 000)1 361 (3 000) 5.52 (60)
6.8L 4.108 392
(18 500)3 856 (8 500) 5.52 (60)
Maximum loaded trailer weight of 4 717 kg (10 400 lbs.) on 7.3L E350
RV and commercial cutaways (single rear wheel) applicable to fifth
wheel trailer usage only. Otherwise, maximum trailer weight is 4 536 kg
(10 000 lbs.).
For high altitude operation reduce GCWR by 2% per 300 meters
(1 000 ft) elevation.
To determine the maximum trailer weight designed for you particular
vehicle as equipped, follow the sectionCalculating the load your
vehicle can tow/carryearlier in this chapter.
Driving
118
ProCarManuals.com

Your vehicle's load capacity is designated by weight, not by volume, so
you cannot necessarily use all available space when loading a vehicle.
Distribute the load so that only 10 to 15% of the total is on the tongue.
Tie down the load so that it does not shift and change the weight on the
hitch.
Towing a trailer places an additional load on your vehicle's engine,
transmission, axle, brakes, tires and suspension. Inspect these
components carefully after any towing operation.
Do not exceed the GVWR or the GAWR specified on the Safety
Compliance Certification Label.
Towing trailers beyond the maximum recommended gross trailer
weight could result in engine damage, transmission/axle damage,
structural damage, loss of control, and personal injury.
Preparing to tow
Use the proper equipment for towing a trailer, and make sure it is
properly attached to your vehicle. See your dealer or a reliable trailer
dealer if you require assistance.
Hitches
Do not use or install hitches that clamp onto the bumper or to the axle.
Underbody hitches are acceptable if installed properly.
Safety chains
Always connect the trailer's safety chains to the vehicle. To connect the
trailer's safety chains, cross the chains under the trailer tongue and allow
slack for turning corners.
If you use a rental trailer, follow the instructions that the rental agency
gives to you.
Do not attach safety chains to the bumper.
Driving
119
ProCarManuals.com

Trailer brakes
Electric brakes and manual, automatic or surge-type brakes are safe if
installed properly and adjusted to the manufacturer's specifications. The
trailer brakes must meet local and Federal regulations.
Do not connect a trailer's hydraulic brake system directly to your
vehicle's brake system. Your vehicle may not have enough
braking power and your chances of having a collision greatly increase.
The braking system of the tow vehicle is rated for operation at the
GVWR not GCWR.
Trailer lamps
Trailer lamps are required on most towed vehicles. Make sure your
trailer lamps conform to local and Federal regulations. See your dealer or
trailer rental agency for proper instructions and equipment for hooking
up trailer lamps.
Using a step bumper
The rear bumper is equipped with an integral hitch and requires only a
ball with a 25.4 mm (one inch) shank diameter. The bumper has a
2 270 kg (5 000 lb.) trailer weight and 227 kg (500 lb.) tongue weight
capability.
If it is necessary to relocate the trailer hitch ball position, a
frame-mounted trailer hitch must be installed.
Driving while you tow
Do not drive faster than 88 km/h (55 mph) when towing a trailer. Do not
drive faster than 72 km/h (45 mph) with any weight on the trailer while
towing on a hot day or in hilly country.
Speed control may shut off if you are towing on long, steep grades.
When towing a trailer:
²Use D (Drive) or a lower gear when towing up or down steep hills.
This will eliminate excessive downshifting and upshifting for optimum
fuel economy and transmission cooling.
²Anticipate stops and brake gradually.
When descending long, steep downhill grades, always use a lower gear to
provide engine braking to save wear on brakes. Use Drive (Overdrive
Driving
120
ProCarManuals.com

OFF) on moderately steep hills, Second (2) on steep hills, and First (1)
on very steep hills.
Servicing after towing
If you tow a trailer for long distances, your vehicle will require more
frequent service intervals. Refer to your maintenance guide and or
service guide for more information.
Trailer towing tips
²Practice turning, stopping and backing up in an area before starting on
a trip to get the feel of the vehicle trailer combination. When turning,
make wider turns so the trailer wheels will clear curbs and other
obstacles.
²Allow more distance for stopping with a trailer attached.
²The trailer tongue weight should be 10±15% of the loaded trailer
weight.
²If you will be towing a trailer frequently in hot weather, hilly
conditions, at GCW, or any combination of these factors, consider
refilling your rear axle with synthetic gear lube. Refer to the
Capacities and specificationschapter for the lubricant specification.
²After you have traveled 80 km (50 miles), thoroughly check your
hitch, electrical connections and trailer wheel lug nuts.
²When stopped in traffic for long periods of time in hot weather, place
the gearshift in P (Park) and increase idle speed. This aids engine
cooling and air conditioner efficiency.
²Vehicles with trailers should not be parked on a grade. If you must
park on a grade, place wheel chocks under the trailer's wheels.
Launching or retrieving a boat
When backing down a ramp during boat launching or retrieval,
²Do not allow the static water level to rise above the bottom edge of
the rear bumper and
²Do not allow waves to break higher than 15 cm (six inches) above the
bottom edge of the rear bumper.
Exceeding these limits may allow water to enter critical vehicle
components, adversely affecting driveability, emissions, reliability and
causing internal transmission damage.
Driving
121
ProCarManuals.com

Conditions
²Heavily loading a vehicle or towing a trailer may reduce fuel economy
at any speed.
²Carrying unnecessary weight may reduce fuel economy (approximately
2 km/h [1 mpg] is lost for every 180 kg [400 lb] of weight carried).
²Adding certain accessories to your vehicle (for example bug
deflectors, rollover/light bars, running boards, ski/luggage racks) may
reduce fuel economy.
²Use of fuel blended with alcohol may lower fuel economy.
²Fuel economy may decrease with lower temperatures during the first
12±16 km (8±10 miles) of driving.
²Flat terrain driving improves fuel economy over hilly roads.
²Transmissions give their best fuel economy when operated in the top
cruise gear and with steady pressure on the gas pedal.
²Four-wheel-drive operation (if equipped) is less fuel efficient than
two-wheel-drive operation.
²Close windows for high speed driving.
EPA window sticker
Every new vehicle should have the EPA window sticker. Contact your
dealer if the window sticker is not supplied with your vehicle. The EPA
window sticker should be your guide for the fuel economy comparisons
with other vehicles.
It is important to note the box in the lower left corner of the window
sticker. These numbers represent the Range of Km/L (MPG) expected on
the vehicle, depending upon the driver's method of operation and
conditions.
Maintenance and care
177
ProCarManuals.com

Air bag supplemental restraint
system ..........................................83
and child safety seats ..............84
description ................................83
disposal ......................................87
indicator light ...........................86
passenger air bag .....................85
Automatic transmission
driving an automatic
overdrive ...................109,110,111
Axle
refill capacities ........................189
Battery
disconnecting ............161,162,163
voltage gauge ............................14
Brakes ........................................103
anti-lock .....................103,104,105
anti-lock brake system (ABS)
warning light ...........................104
fluid, checking and adding ....150
shift interlock ..........................108
Break-in period ..........................2,3
CD player ....................................53
Child safety seats
attaching with tether straps ....93
in rear seat ................................90
tether anchorage
hardware ..............................93,97
Cleaning your vehicle ...............183
engine compartment ..............185
exterior .............................184,187
exterior lamps .........................186
interior .....................................186
plastic parts ............................186
washing ....................................184
waxing .....................................184
wheels ......................................185
windows ..................................187
wiper blades ............................186
Controls
power seat .................................72
Coolant ...............................153,154checking and adding ..............152
refill capacities ........................154
Driveline universal joint and
slip yoke ....................................159
Emission control system ..........178
Engine
coolant .....................................151
idle speed control ...................159
service points ..........................147
starting after a collision .........123
Engine block heater .................101
Engine oil
checking and adding ..............149
dipstick ....................................147
specifications ...................147,149
Exhaust fumes ..........................101
Fail safe cooling .................154,155
Fuel
choosing the right fuel ...........171
comparisons with EPA fuel
economy estimates .................177
detergent in fuel .....................172
filling your vehicle
with fuel ...........................170,173
gauge .........................................12
quality ......................................172
running out of fuel .................172
safety information relating to
automotive fuels .....................170
Fuses ...................................125,126
Gas mileage (see Fuel
economy) ..............174,175,176,177
Gauges .........................................12
engine coolant temperature
gauge .........................................13
engine oil pressure gauge ........13
GVWR
(Gross Vehicle Weight Rating)
calculating ...............................113
Hazard flashers .........................123
Headlamps
aiming ......................................183
Index
200
ProCarManuals.com