FORD BRONCO 1988 Owners Manual

211
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[DR26550( ALL)05/90]
High Speed Driving
*
[DR26575( ALL)05/95]
Ford Motor Company recommends obeying
posted speed limits.
*
[DR26601( ALL)05/95]
RWARNING
Driving too fast for conditions creates the
possibility of loss of vehicle control.
Driving at very high speeds for extended
periods of time may result in damage to
vehicle components.
*
[DR26625(BEF )12/91]
Speed limiter
*
[DR26652(BEF )03/94]
All models are equipped with an electronic
engine control system (EEC) which limits the
maximum engine speed and thus road speed in
top gear. Vehicle operation is normal since the
controlled maximum speed is above posted
highway speeds in North America.
%*
[DR26701( ALL)01/95]
Driving in Bad Weather
%*
[DR26750( ALL)01/95]
Slippery roads
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[DR26801( ALL)03/95]
Drive cautiously on wet or snowy roads:
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[DR26850( ALL)03/95]
q
Do not quickly move the steering wheel
unless necessary.
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[DR26901( ALL)01/95]
q
Drive slower than you normally would.
*
[DR26951( ALL)01/95]
q
Give your vehicle more distance to stop.
*
[DR27025( ALL)07/94]
q
To stop on ice, shift to Neutral below 10 mph
(16 km/h) and gently pump brakes. (Except
with 4WAL)
*
[DR27050( ALL)02/93]
q
Consider using one of the lower gears.
*
[DR27101(B F )05/91]
q
For 4x4 vehicles, engage 4WD, and try to
drive slowly away.
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212
*
[DR27150(B F )05/95]
RWARNING
To avoid losing control on slippery roads,
do not downshift into Low with the
automatic transmission when moving
faster than 20 mph (32 km/h). Do not
downshift into First with the manual
transmission when moving faster than
5 mph (8 km/h).
*
[DR27350(B F )06/94]
RWARNING
The rear antilock brake system may not
prevent brake lock-up on extremely
slippery surfaces. Rear brake lock-up may
also occur while driving in four-wheel
drive because the transfer case couples the
front and rear axles together.
*
[DR27450(BEF )03/95]
Traction-Lok Rear Axle (If equipped)
*
[DR27501(BEF )03/95]
This axle provides added drive away traction on
slippery surfaces, particularly when one or more
wheels are on a surface with poor traction.
*
[DR27550(BEF )03/93]
Extended use of other than matching size tires
on a Traction-Lok rear axle could result in a
permanent reduction in effectiveness. This loss of
effectiveness does not affect normal driving and
should not be noticeable to the driver.
*
[DR27601(BEF )05/95]
RWARNING
To avoid injury, never run the engine
with one wheel off the ground, such as
when changing a tire.
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213 %
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[DR27651( ALL)01/95]
High water
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[DR27675( ALL)06/92]
Never attempt to cross water that is fast flowing
or of unknown depth.
*
[DR27701( ALL)05/90]
Do not drive through flooded areas unless you
are sure that the water is below the bottom of
the wheel hubs.
*
[DR27750( ALL)04/94]
If you must drive through high water, drive
slowly. You may have limited traction or wet
brakes, so allow extra stopping distance because
your vehicle will not stop as quickly as usual.
*
[DR27801( ALL)01/95]
After you drive through the standing water,
apply your brakes gently several times as your
vehicle moves slowly. This helps to dry the
brakes.
*
[DR27820( ALL)07/94]
NOTE: If the transmission and transfer case is
submerged in water, their fluids should
be checked and changed, if necessary.
*
[DR27825( ALL)03/93]
NOTE: All rear axle lube quantities must be
replaced every 100,000 miles
(160,000 km) or if the axle has been
submerged in water. Otherwise, the
lube should not be checked or changed
unless a leak is suspected or repair
required.
*
[DR27850( ALL)11/89]
Rocking the vehicle
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[DR27901(B F )05/90]
For 4x4 vehicles, engage 4WD LOW, when the
vehicle gets stuck and try to drive away.
*
[DR27950( ALL)05/95]
If your vehicle gets stuck (for example, in mud
or snow), you may rock it out of the spot. Shift
in a steady rhythm between forward and reverse
gears. Allow the transmission to fully engage,
then press lightly on the accelerator. Do not rock
the vehicle for more than a few minutes. This
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214may overheat the engine and transmission,
causing damage to both. In addition, other
vehicle systems and components may also be
damaged.
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[DR27975( ALL)05/95]
RWARNING
Do not spin the wheels at over 35 mph
(56 km/h). The tires may fail and injure a
passenger or bystander.
*
[DR28050(BEF )03/95]
Driving With a Heavy Load
*
[DR28101(BEF )01/95]
There are limits to the amount of weight your
vehicle can carry or tow. The total weight of
your vehicle, plus the weight of the passengers
and cargo, should never be more than the Gross
Vehicle Weight Rating (GVWR). Also, the weight
that your vehicle carries over the front axle and
rear axle should never be more than the Gross
Axle Weight Rating (GAWR) for the respective
axle.
*
[DR28150(BEF )01/95]
The weight limits of your vehicle's tires affect
the GVWR or GAWR limitations. Usage of
replacement tires with higher weight limit than
originals does not increase GVWR or GAWR.
Usage of lower capacity replacement tires may
lower GVWR and GAWR limitations.
*
[DR28201(BEF )02/95]
RWARNING
If the GVWR or the GAWR specified on
the Safety Compliance Certification Label
is exceeded, your vehicle may be damaged
or you may lose control and injure
someone.
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215
*
[DR28250(B F )03/91]
Heavy duty front suspension package
(option)
*
[DR28301(B F )03/91]
This optional front suspension package is
designed to handle the additional loads that will
be imposed on the vehicle by adding aftermarket
equipment, such as a snowplow. Refer to the
Safety Compliance Certification Label for details.
*
[DR28750( ALL)01/93]
Vehicle/Trailer Loads
*
[DR28801( ALL)06/92]
All vehicles may tow a Class I trailer provided
the Gross Combined Weight (GCW) is less than
or equal to the GVWR shown on the Safety
Compliance Certification Label. For heavier
trailer applications, refer to the towing
information found later in this chapter.
*
[DR28950(BEF )02/95]
Trailer Towing (may require trailer tow
option package)
*
[DR29001( ALL)03/91]
Towing a trailer puts additional loads on your
vehicle's engine, transmission, axle, brakes, tires
and suspension. For your safety and for the
good of your vehicle, use the right equipment
for the type of trailer you tow.
[DR29010(B F )05/95]
If your trailer is equipped with electric brakes,
auxiliary battery, or back-up lamps, the optional
7 wire trailer towing electrical hook-up will be
required on the vehicle.
*
[DR29025( ALL)09/92]
Your trailer towing capability will vary based on
the standard and optional equipment on your
vehicle. Refer to the followingVehicle
Loading/Towing Informationand the Trailer
Towing Tables to determine the specific towing
capability of your vehicle.
*
[DR29050( ALL)02/92]
q
Stay within the load limits when you tow.
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216
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[DR29101( ALL)01/95]
q
Carefully and thoroughly prepare your
vehicle for towing, making sure to use the
right equipment and to attach it properly.
(SeePreparing to Towin this chapter.)
*
[DR29151( ALL)01/95]
q
Use extra caution when driving your vehicle
while you tow. (SeeDriving while you towin
this chapter.)
*
[DR29201( ALL)01/95]
q
Service your vehicle more frequently if you
tow a trailer. (SeeServicing your vehicle if you
towin this chapter.)
*
[DR29350( ALL)05/94]
Do not tow a trailer until your vehicle has been
driven at least 500 miles (800 km).
*
[DR29401( ALL)06/92]
Vehicle Loading/Towing
Information
*
[DR29450(BEF )03/91]
Your vehicle's load capacity is designated by
weight, not volume, so you cannot necessarily
use all available space with large or heavy loads.
Maximum safe vehicle weights as well as tire,
rim sizes and inflation pressures are specified for
your vehicle at the assembly plant on the Safety
Compliance Certification Label. The Certification
Label is located on the left front door lock facing
or the door latch post pillar.
*
[DR29501( ALL)12/91]
Trucks, unlike passenger cars, are basically
custom vehicles designed to carry a load. Most
owners start with a base vehicle and add
production and dealer installed and/or
aftermarket components to suit their tastes and
purposes. Even trucks that are purchased for
personal transportation only are likely to have
considerable optional equipment, such as step
bumpers and light bars, for example.
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217
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[DR29525( ALL)05/95]
RWARNING
Passengers should not be allowed to ride
in the cargo area. Persons not riding in a
seat with a fastened seat belt are much
more likely to suffer serious injury in a
collision. Cargo should always be secured
to prevent it from shifting and causing
damage to the vehicle or harm to
passengers.
*
[DR29551( ALL)03/91]
Each additional item of equipment affects how
much cargo a vehicle can carry. If a vehicle is
overloaded, performance will suffer and service
concerns may arise.
*
[DR29601(BEF )04/95]
The following is a typical example of a Safety
Compliance Certification Label and an
explanation of how this information should be
used:
[DR29701(B )05/89]
half page art:0020149-C
Safety Compliance Certification Label
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218
*
[DR29950(BEF )06/92]
Do not use the sample numbers on the Safety
Compliance Certification Label shown. Use the
actual numbers from your vehicle certification
label.
*
[DR30001( ALL)06/92]
Understanding Loading/Towing
Information
*
[DR30050( ALL)03/94]
The following terms are used to describe the
ability to carry or tow a load:
*
[DR30101( ALL)01/93]
q
Base Curb Weight
*
[DR30150( ALL)01/93]
q
Payload
*
[DR30200( ALL)01/93]
q
GVW (Gross Vehicle Weight)
*
[DR30250( ALL)01/93]
q
GVWR (Gross Vehicle Weight Rating)
*
[DR30301( ALL)01/93]
q
GAWR (Gross Axle Weight Rating)
*
[DR30310( ALL)06/92]
q
GCWR (Gross Combined Weight Rating)
*
[DR30320( ALL)06/92]
q
Maximum Trailer Weight Rating
*
[DR30330( ALL)06/92]
q
Maximum Trailer Weight
*
[DR30340( ALL)06/92]
q
Trailer Weight Range
*
[DR30351( ALL)03/91]
Base Curb Weight
*
[DR30401( ALL)03/94]
The Base Curb Weight is the weight of the
vehicle including fuel, coolants, lubricants,
emergency tools, spare wheel and tire. It also
includes any equipment that isstandardon that
model. It does not include passengers, cargo or
optional equipment installed by factory, dealer,
aftermarket supplier or customer.
*
[DR30451( ALL)03/91]
Payload
*
[DR30501( ALL)03/91]
Payload is the combined, maximum allowable
weight of cargo, occupants and optional
equipment that the truck is designed to carry. It
is Gross Vehicle Weight Rating minus the base
curb weight.
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219
*
[DR30550( ALL)03/91]
Gross Vehicle Weight (GVW)
*
[DR30601( ALL)03/91]
If you add base curb weight and the weight of a
load (including passengers, cargo and optional
equipment) being carried at a particular time,
you get the Gross Vehicle Weight (GVW).
*
[DR30650( ALL)10/94]
It is important to remember that GVWis not a
limit or a specification.If an owner loads up a
vehicle and weighs it, that's the GVW at that
moment. If the owner piles on more of a load
and weighs it again, that becomes the
GVW...until such time as the vehicle is unloaded.
*
[DR30701( ALL)03/91]
Gross Vehicle Weight Rating (GVWR)
*
[DR30750( ALL)10/94]
To avoid overloading a vehicle, the owner
should observe the manufacturer's specified
Gross Vehicle Weight Rating. The GVWR is the
maximum total weight of base vehicle,
passengers, optional components and cargo that
a particular vehicle was designed to carry.
*
[DR30801( ALL)01/93]
Gross Axle Weight Rating (GAWR)
*
[DR30850( ALL)03/91]
We have all seen a car or a truck that is loaded
down in the rear and riding high in the front.
This is a dangerous condition that usually means
that the rear suspension components are under
severe strain and that vehicle handling is
impaired. There is more to carrying a load than
just payload or GVWR.
*
[DR30901( ALL)03/91]
Your Safety Compliance Certification Label not
only gives the GVWR, it also gives the Gross
Axle Weight Rating (GAWR) which is the
carrying capacity for each axle system. For
trucks, the rear axle will be designed to carry
more weight than the front.
*
[DR30950( ALL)06/92]
The rating is based on the carrying capacity of
thelowest ratedaxle and suspension component
as well as other factors. This is why it's so
important to observe vehicle loading ratings.
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220Overloading a vehicle punishes components and
can lead to shortened service life or outright
failure.
*
[DR31001( ALL)06/92]
The capacity of the tires is included as part of
the axle and suspension system, which is to be
considered when determining the lowest rated
component. Tires are rated to carry a specific
maximum load at a specific maximum tire
pressure.
*
[DR31050( ALL)06/92]
Passenger car type tires when installed on light
trucks and multipurpose passenger vehicles are
rated at 10% lower load carrying capacity due to
the differences in vehicle usages.
*
[DR31101(BEF )07/92]
The vehicle must not be loaded to both the front
and rear GAWR because the GVWR will be
exceeded. The GAWR of the front and rear axles
exceed the GVWR when added together to allow
flexibility in fore and aft loading of cargo.
*
[DR31110( ALL)06/92]
With the tires inflated to the specified pressure
the total weight of your vehicle must not exceed
the GVWR and GAWR specified on the Safety
Compliance Certification Label. This includes full
fuel tank(s), vehicle equipment, and occupants as
well as the cargo load.
*
[DR31120( ALL)06/92]
GCWR (Gross Combined Weight Rating)
*
[DR31130( ALL)06/92]
GCWR is the maximum combined weight of the
towing vehicle (including passengers and cargo)
and the loaded trailer. The GCWR is specified
by the manufacturer to indicate the combined
maximum loaded weight that the vehicle is
designed to tow.
*
[DR31140( ALL)06/92]
Maximum Trailer Weight Rating
*
[DR31150( ALL)06/92]
The maximum weight of a trailer the vehicle is
permitted to tow. The maximum trailer weight
rating is specified by the manufacturer and is
determined by subtracting the vehicle curb
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