1988 FORD BRONCO fuel pump

67
refer to the chapter titledServicing Your Bronco
in this Owner Guide for instructions on checking
and replacing fuses.
*
[ST06640( ALL)05/95]
RWARNING
DO NOT DRIVE YOUR VEHICLE UNTIL
YOU VERIFY THAT THE BRAKELAMPS
ARE WORKING.
*
[ST06775( ALL)03/95]
For cold or warm engines:
*
[ST06800( ALL)03/95]
If the engine still does not start after two
attempts:
*
[ST06825( ALL)04/95]
1. Turn the ignition key to the OFF position.
*
[ST06851( ALL)04/95]
2. Press the accelerator all the way to the floor
and hold it.
*
[ST06876( ALL)04/95]
3. Turn the ignition key to the START position.
*
[ST06900( ALL)04/95]
4. Release the ignition key when the engine
starts.
*
[ST06925( ALL)04/95]
5. Release the accelerator gradually as the
engine speeds up. Then drive away in the
normal manner.
*
[ST06951( ALL)04/95]
If the engine still does not start, the fuel pump
shut-off switch may have been triggered. For
directions on how to reset the switch seeFuel
Pump Shut-Off Switchlater in this chapter.
*
[ST07300(BEF )05/95]
A computer system controls the engine's idle
speed. When you start your vehicle, the engine's
idle speed normally runs higher than when it's
warmed up. These faster engine speeds will
make your vehicle move slightly faster than its
normal idle speed. It should, however, slow
down after a short time. If it does not, have the
idle speed checked.
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69
*
[ST08100(BEF )03/95]
For best results, plug the heater in at least three
hours before you start your vehicle. Using the
heater for longer than three hours will not
damage the engine, so you can plug it in at
night to start your vehicle the following
morning.
*
[ST08150(BEF )12/91]
NOTE: Be sure to disconnect the engine block
heater before driving your vehicle.
%
*
[ST08160( ALL)03/95]
If the Engine Cranks but Does
Not Start or Does Not Start After
a Collision
*
[ST08170(BEF )04/95]
Fuel Pump Shut-off Switch
*
[ST08190( ALL)03/95]
If the engine cranks but does not start or does
not start after a collision, the fuel pump shut-off
switch may have been triggered. The shut-off
switch is a device intended to stop the fuel
pump when your vehicle has been involved in a
substantial jolt.
*
[ST08200( ALL)03/95]
Once the shut-off switch is triggered, you must
reset the switch by hand before you can start
your vehicle.
*
[ST08210(B F )03/95]
one third page art:0020005-C
Fuel pump shut-off switch location
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70
*
[ST08260( ALL)05/95]
RWARNING
If you see or smell fuel, do not reset the
switch or try to start your vehicle. Have
all the passengers get out of the vehicle
and call the local fire department or a
towing service.
*
[ST08270( ALL)03/95]
If your engine cranks but does not start after a
collision or substantial jolt:
*
[ST08280( ALL)04/95]
1. Turn the ignition key to the OFF position.
*
[ST08290( ALL)03/95]
2. Check under the vehicle for leaking fuel.
*
[ST08300( ALL)03/95]
3. If you do not see or smell fuel, push the red
reset button down. If the button is already
set, you may have a different mechanical
problem.
*
[ST08310(BEF )03/95]
4. Turn the ignition key to the ON position for
a few seconds, then turn it to the OFF
position.
*
[ST08330( ALL)03/95]
5. Check under the vehicle again for leaking
fuel.If you see or smell fuel, do not start
your vehicle again.If you do not see or
smell fuel, you can try to start your vehicle
again.
*
[ST08340( ALL)03/95]
6. Check all vehicle warning lights before
driving your vehicle.
*
[ST08350(BEF )03/95]
quarter page art:0020107-A
Reset button for fuel pump shut-off switch
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250
*
[RE24200( ALL)10/89]
Also retighten to the specified torque at 500
miles (800 km) of operation after any wheel
change or any time the lug nuts are loosened.
*
[RE24301( ALL)05/95]
RWARNING
Failure to retighten wheel lug nuts at
mileages specified could allow wheels to
come off while the vehicle is in motion.
[RE24330(B )02/89]
eight pica chart:0020314-A*
[RE24397(BEF )02/95]
If the Engine Cranks But Does
Not Start or Does Not Start After
a Collision
*
[RE24400(BEF )04/95]
The Fuel Pump Shut-off Switch
*
[RE24500(BEF )03/95]
If the engine cranks but does not start or if you
have had a collision, the fuel pump shut-off
switch may have been triggered. The shut-off
switch is a device that stops the fuel pump
when your vehicle has been involved in a
substantial jolt.
*
[RE24600(BEF )01/95]
For information on how to check and reset the
fuel pump shut-off switch, seeFuel pump shut-off
switchin the Index.
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281 %
*
[SV05900(BEF )04/95]
Cleaning the Engine
*
[SV05920(BEF )04/95]
A clean engine is more efficient because a
buildup of grease and dirt acts as an insulator,
keeping the engine warmer than usual.
*
[SV05940(BEF )05/95]
q
Extreme care must be used if a power washer
is used to clean the engine. The high pressure
fluid could penetrate sealed parts and
assemblies causing damage or malfunctions.
*
[SV05960(BEF )04/95]
q
In order to avoid possible cracking of the
engine block or fuel injection pump, do not
spray a hot engine or injection pump with
cold water.
*
[SV05980(BEF )04/95]
q
The alternator, distributor and air intake must
be covered. Covering these components will
help prevent water damage.
*
[SV06000(BEF )04/95]
q
Never wash or rinse the engine while it is
running. Water getting into the engine may
cause internal damage.
*
[SV06100( ALL)03/95]
Filling the Fuel Tank
[SV06300(B )01/89]
one third page art:0020348-A
Fuel filler door
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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.
File:ltsvb.ex
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288
*
[SV10300( ALL)02/95]
Filling the fuel tank
*
[SV10400( ALL)04/94]
RWARNING
Do not overfill the fuel tank. The pressure
in an overfilled tank may cause leakage
and lead to fuel spray and fire.
*
[SV10500( ALL)01/95]
To fill the fuel tank properly:
*
[SV10550( ALL)01/95]
NOTE: Extinguish all lit cigarettes, other
smoking materials, and any open
flames before fueling your vehicle.
*
[SV10600( ALL)01/95]
1. Remove the fuel cap by following the
instructions above underRemoving the Fuel
Capin this chapter. Proceed to add fuel to
the tank only if your vehicle is on level
ground.
*
[SV10700( ALL)03/95]
2. Make sure that you pump unleaded fuel and
put the nozzle all the way inside the fuel
filler pipe.
*
[SV10800( ALL)05/95]
3. If you spill any fuel on the body of your
vehicle, clean it off immediately. The fuel
may dull or soften the paint if you do not
wash it off.
%*
[SV10900( ALL)05/95]
4. Replace the fuel cap completely when you
are finished. Turn it clockwise 1/4 turn until
it is tight. It will click when it is fully
tightened.
%*
[SV11300( ALL)05/95]
Running Out of Fuel
*
[SV11400( ALL)05/95]
If your vehicle runs out of fuel, try to stop on
level ground away from traffic. Add at least two
gallons (8 liters) of fuel to start your vehicle
again. If your vehicle is not on level ground,
you may need as much as five gallons (20 liters)
of fuel to start it.
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289
*
[SV11500( ALL)05/95]
You may need to crank the engine several times
before the fuel system starts to pump fuel from
the tank to the engine.
%*
[SV11600( ALL)05/95]
Fuel Economy
*
[SV11700( ALL)05/95]
Fuel economy is an estimate of the efficiency of
your vehicle and can be calculated as Miles Per
Gallon (MPG) or Liters Per 100 Kilometers
(L/100K).
*
[SV11750( ALL)05/95]
Do not calculate fuel economy during your
vehicle's break-in period. This would not be an
accurate estimate of how much fuel your vehicle
will normally use.
*
[SV11800( ALL)05/95]
To calculate fuel economy:
*
[SV11900( ALL)05/95]
1. Fill the tank completely and record the inital
odometer reading.
*
[SV12000( ALL)05/95]
2. Every time you buy fuel record the
amount (in gallons or liters) purchased.
*
[SV12200( ALL)05/95]
3. After at least three to five tankfuls, fill the
fuel tank and record the final odometer
reading.
*
[SV12225( ALL)05/95]
4. Use these equations to calculate your fuel
economy.
*
[SV12250( ALL)05/95]
q
English: MPG = (total miles)/(gallons used).
*
[SV12275( ALL)05/95]
q
Metric: L/100K = (liters used) x 100/(total
kilometers)
*
[SV12300(BEF )05/95]
Comparisons With EPA Fuel Economy
Estimates
*
[SV12400(BEF )05/95]
EPA fuel economy figures are obtained from
laboratory tests under simulated road conditions
and may not reflect the actual conditions you
experience or your style of driving. The EPA
fuel economy estimate is not a guarantee that
you will achieve the fuel economy shown.
File:ltsvb.ex
Update:Tue Jun 20 16:56:22 1995
ProCarManuals.com