Page 280 of 376
![FORD BRONCO 1988 Owners Manual 283
*
[SV07025( ALL)05/95]
NOTE: If you replace your fuel cap with an
aftermarket fuel filler cap, the customer
warranty may be void for any damage
to the fuel tank and/or fuel system.
*
[SV07050( ALL FORD BRONCO 1988 Owners Manual 283
*
[SV07025( ALL)05/95]
NOTE: If you replace your fuel cap with an
aftermarket fuel filler cap, the customer
warranty may be void for any damage
to the fuel tank and/or fuel system.
*
[SV07050( ALL](/manual-img/11/57754/w960_57754-279.png)
283
*
[SV07025( ALL)05/95]
NOTE: If you replace your fuel cap with an
aftermarket fuel filler cap, the customer
warranty may be void for any damage
to the fuel tank and/or fuel system.
*
[SV07050( ALL)05/95]
RWARNING
If the fuel cap is venting vapor or if you
hear a hissing sound, wait until it stops
before completely removing the cap.
*
[SV07060(BEF )11/89]
A venting fuel tank is not an abnormal
condition. It may be caused by:
*
[SV07061(BEF )03/90]
q
Too volatile a fuel for the weather conditions.
The service stations sometimes sell winter
grade fuel in the summer.
*
[SV07062(BEF )11/89]
q
Pulling a heavy load on hot days, or at high
altitudes.
*
[SV07063(BEF )11/89]
q
Extended periods of idling with the engine
RPM increased above the normal idle range.
*
[SV07064(BEF )11/89]
q
Parking vehicle in full sunlight for extended
periods on extremely hot days.
*
[SV07500( ALL)05/95]
Choosing the Right Fuel
*
[SV07600( ALL)05/95]
Use only UNLEADED FUEL in your vehicle.
Using leaded fuel is prohibited by federal law.
Your warranty may not apply if your vehicle is
damaged because you used the wrong fuel.
*
[SV07700( ALL)05/95]
Vehicle inspection programs may detect
misfueling. Under these circumstances, you may
be required by law to make costly repairs at
your own expense.
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Page 281 of 376
![FORD BRONCO 1988 Owners Manual 284
*
[SV08710( ALL)04/95]
Octane recommendations
*
[SV08725( ALL)04/95]
Your vehicle is designed to use regular
unleaded fuel with an octane rating of 87.In
most cases, it is not necessary to use a f FORD BRONCO 1988 Owners Manual 284
*
[SV08710( ALL)04/95]
Octane recommendations
*
[SV08725( ALL)04/95]
Your vehicle is designed to use regular
unleaded fuel with an octane rating of 87.In
most cases, it is not necessary to use a f](/manual-img/11/57754/w960_57754-280.png)
284
*
[SV08710( ALL)04/95]
Octane recommendations
*
[SV08725( ALL)04/95]
Your vehicle is designed to use regular
unleaded fuel with an octane rating of 87.In
most cases, it is not necessary to use a fuel with
an octane rating higher than 87. At service
stations, the octane rating is displayed on a label
on the pumps.
*
[SV08900( ALL)05/95]
one inch art:0060001-C
Typical octane rating label
*
[SV09050( ALL)05/95]
In some parts of the country, ªregularº grade
fuels are sold with octane ratings of 86 or even
less, especially in high altitude areas. We
recommend that you do not use these fuels.
Always use a fuel with an octane rating of 87,
even if it is sold as a ªmidgradeº or ªpremium.º
*
[SV09200( ALL)05/95]
Do not be concerned if your vehicle sometimes
knocks lightly when you drive up a hill or when
you accelerate. However, if a fuel with the
recommended octane rating knocks heavily
under all driving conditions or knocks lightly
driving at cruising speed on level roads, see
your dealer or a qualified service technician.
Persistent, heavy knocking can damage the
engine.
*
[SV09435( ALL)05/95]
Fuel quality
*
[SV09450( ALL)05/95]
If you are experiencing starting, rough idle or
hesitation problems when the engine is cold, it
may be caused by fuel with low volatility. Try a
different brand of fuel. If the condition persists,
see your dealer or a qualified service technician.
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Page 289 of 376
![FORD BRONCO 1988 Owners Manual 292 [SV13745( ALL)02/95]Synthetic engine oils which are CERTIFIED and
of the preferred viscosity may be used in your
engine. The engine oil and oil filter must still be
changed according to the mainte FORD BRONCO 1988 Owners Manual 292 [SV13745( ALL)02/95]Synthetic engine oils which are CERTIFIED and
of the preferred viscosity may be used in your
engine. The engine oil and oil filter must still be
changed according to the mainte](/manual-img/11/57754/w960_57754-288.png)
292 [SV13745( ALL)02/95]Synthetic engine oils which are CERTIFIED and
of the preferred viscosity may be used in your
engine. The engine oil and oil filter must still be
changed according to the maintenance schedule.
*
[SV13775( ALL)01/95]
Checking and Adding Engine Oil
*
[SV13800( ALL)03/95]
Since the proper amount of engine oil is
important for safe engine operation, check the oil
using the dipstick each time you put fuel in
your vehicle. Remember the engine must be off,
the oil must be warm and the vehicle must be
parked on level ground.
*
[SV13900( ALL)03/95]
Checking the engine oil level:
*
[SV14000( ALL)02/95]
1. Turn the engine off after it has warmed up
and allow a few minutes for the engine oil
to drain back into the oil pan.
*
[SV14050(B F )03/95]
2. Set the parking brake, making sure that the
gearshift is securely latched in P (Park)
(automatic transmission) or 1 (First) (manual
transmission).
*
[SV14100( ALL)02/95]
3. Open the hood. Protect yourself from engine
heat.
*
[SV14200( ALL)03/95]
4. Locate the engine oil dipstick (highlighted in
yellow) and carefully pull it out of the
engine.
*
[SV14300( ALL)01/95]
5. Wipe the dipstick clean and put it back into
position, making sure it is fully seated.
*
[SV14400( ALL)05/94]
quarter page art:0010364-D
Engine oil dipstick
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Page 290 of 376
![FORD BRONCO 1988 Owners Manual 293
*
[SV14500( ALL)02/95]
6. Carefully, pull the dipstick out again. If the
oil level is below the ªADD 1 QT.º line, add
engine oil as necessary. If the oil level is
beyond the letter ªFº in FULL FORD BRONCO 1988 Owners Manual 293
*
[SV14500( ALL)02/95]
6. Carefully, pull the dipstick out again. If the
oil level is below the ªADD 1 QT.º line, add
engine oil as necessary. If the oil level is
beyond the letter ªFº in FULL](/manual-img/11/57754/w960_57754-289.png)
293
*
[SV14500( ALL)02/95]
6. Carefully, pull the dipstick out again. If the
oil level is below the ªADD 1 QT.º line, add
engine oil as necessary. If the oil level is
beyond the letter ªFº in FULL, engine
damage or high oil consumption may occur
and some oil must be removed from the
engine.
*
[SV14600( ALL)01/95]
7. Put the dipstick back in and make sure it is
fully seated.
*
[SV14800( ALL)01/95]
It may be necessary to add some oil between oil
changes. Make sure you use a CERTIFIED
engine oil of the preferred viscosity. Your
vehicle's warranty coverage may not apply if
engine damage is caused by the use of improper
engine oil.
*
[SV15000( ALL)03/95]
Add engine oil through the oil filler cap
highlighted in yellow. To add oil, remove the
filler cap and use a funnel to pour oil into the
opening. Be careful not to overfill the engine.
Recheck the oil level after you finish adding oil.
*
[SV16500( ALL)04/95]
Change the engine oil and oil filterper the
following, whichever occurs first.
*
[SV16600(BEF )04/95]
one third page art:0060618-C
Oil change intervals
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Page 302 of 376
![FORD BRONCO 1988 Owners Manual 305 [SV26435( ALL)05/95]
Whenever a wheel is removed and then
re-installed, always remove any corrosion that
may be present on the mounting surface of the
wheel and/or the surface of the hub, drum or
FORD BRONCO 1988 Owners Manual 305 [SV26435( ALL)05/95]
Whenever a wheel is removed and then
re-installed, always remove any corrosion that
may be present on the mounting surface of the
wheel and/or the surface of the hub, drum or](/manual-img/11/57754/w960_57754-301.png)
305 [SV26435( ALL)05/95]
Whenever a wheel is removed and then
re-installed, always remove any corrosion that
may be present on the mounting surface of the
wheel and/or the surface of the hub, drum or
rotor that contacts the wheel.
*
[SV26440( ALL)05/95]
RWARNING
Installing wheels without good
metal-to-metal contact at the wheel
mounting surface can cause the wheel lug
nuts to loosen and could allow the wheel
to come off while the vehicle is in motion.
*
[SV26450(BEF )03/95]
Traction-Lok Rear Axle (If equipped)
*
[SV26460(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.
*
[SV26470(BEF )05/95]
RWARNING
To avoid injury, never run the engine
with one wheel off the ground, such as
when changing a tire.
%*
[SV26500( ALL)02/95]
Tire Rotation
*
[SV26600( ALL)03/95]
Because your vehicle's front and rear tires
perform different jobs, they often wear
differently. To make sure your tires wear evenly
and last longer, rotate them at the mileage
shown in theMaintenance Schedule and Record
booklet which came with your vehicle.
*
[SV26700(BEF )07/92]
Rotate the tires according to the following
diagram. If you notice that the tires wear
unevenly, have them checked. If your light truck
has a temporary spare tire, do not include it in
the tire rotation pattern.
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Page 315 of 376
![FORD BRONCO 1988 Owners Manual 318
*
[SV36200(B F )05/90]
quarter page art:0020379-A
Double cardan joint
*
[SV36300( ALL)03/95]
Brake Fluid
*
[SV36350( ALL)05/90]
Your vehicle is equipped with a brake fluid level
indicator in the m FORD BRONCO 1988 Owners Manual 318
*
[SV36200(B F )05/90]
quarter page art:0020379-A
Double cardan joint
*
[SV36300( ALL)03/95]
Brake Fluid
*
[SV36350( ALL)05/90]
Your vehicle is equipped with a brake fluid level
indicator in the m](/manual-img/11/57754/w960_57754-314.png)
318
*
[SV36200(B F )05/90]
quarter page art:0020379-A
Double cardan joint
*
[SV36300( ALL)03/95]
Brake Fluid
*
[SV36350( ALL)05/90]
Your vehicle is equipped with a brake fluid level
indicator in the master cylinder which lights the
BRAKE warning light on the instrument panel
when the brake fluid level is low.
*
[SV36400( ALL)04/95]
Under normal circumstances, your vehicle
should not use up brake fluid rapidly. However,
expect the level of the brake fluid to slowly fall
as you put more mileage on your vehicle and
the brake lining wears.
*
[SV36500( ALL)10/89]
Check the brake fluid at least once a year. You
can do this by looking at the fluid level in the
plastic reservoir on the master cylinder. The
fluid level should be at or near the MAX mark.
*
[SV36550( ALL)05/95]
RWARNING
Brake fluid is toxic.
*
[SV36560( ALL)05/95]
If brake fluid contacts eyes, flush eyes with
running water for 15 minutes. Get medical
attention if irritation persists. If taken internally,
drink water and induce vomiting. Get medical
attention immediately.
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ProCarManuals.com
Page 317 of 376
![FORD BRONCO 1988 Owners Manual 320
*
[SV37600( ALL)03/95]
Power Steering Fluid
*
[SV37700( ALL)01/95]
Check the level of the power steering fluid at
least twice a year (i.e., every Spring and Fall).
*
[SV37800( ALL)03/95]
To check FORD BRONCO 1988 Owners Manual 320
*
[SV37600( ALL)03/95]
Power Steering Fluid
*
[SV37700( ALL)01/95]
Check the level of the power steering fluid at
least twice a year (i.e., every Spring and Fall).
*
[SV37800( ALL)03/95]
To check](/manual-img/11/57754/w960_57754-316.png)
320
*
[SV37600( ALL)03/95]
Power Steering Fluid
*
[SV37700( ALL)01/95]
Check the level of the power steering fluid at
least twice a year (i.e., every Spring and Fall).
*
[SV37800( ALL)03/95]
To check the level of your power steering fluid:
*
[SV37900( ALL)02/95]
1. Start the engine and let it run until the
power steering fluid reaches normal
operating temperature. The power steering
fluid will be at the right temperature when
the engine coolant temperature gauge in the
instrument cluster is near the center of the
NORMAL operating temperature range.
*
[SV38000( ALL)01/95]
2. While the engine idles, turn the steering
wheel back and forth several times. Make
sure that the cap assembly is installed at this
time.
*
[SV38100(BEF )05/95]
3. Turn the engine off.
%*
[SV38200( ALL)03/94]
4. Check the fluid level on the dipstick (which
is highlighted in yellow in your vehicle). The
fluid level should be between the arrows in
the FULL HOT range, which is marked on
the side of the dipstick, opposite the side
marked FULL COLD. Do not add fluid if the
level is within the FULL HOT range.
*
[SV38250( ALL)03/94]
one third page art:0021016-B
Power steering dipstick
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Page 323 of 376
326 [SV40700(B )05/94]
twenty-two pica chart:0020396-F
*
[SV41300( ALL)10/92]
Power distribution box
*
[SV41400( ALL)10/92]
The high current fuses contained in the Power
Distribution Box protect your vehicle's main
electrical systems from overloads; these fuses
provide the connection between the battery and
your vehicle's electrical systems.
*
[SV41500( ALL)10/92]
The high current fuses are coded as follows: 30
amp -light green, 40 amp - orange, 50 amp - red,
60 amp -blue.
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