check engine HONDA PRELUDE 1992 Owner's Manual

Transmission Oil

5-Speed Transmission

Check the oil level a couple of mi-
nutes after shutting off the engine.
Make sure the car is on level
ground. Remove the transmission
filler bolt. The oil level should be
up to the edge of the bolt hole. Feel
inside the bolt hole with your finger.
If you do not feel any oil, slowly
add oil until it starts to run out of
the hole. Reinstall the filler bolt
and tighten it securely. Only use an SF or SG grade motor
oil with a weight of 10W-30 or
10W-40.

The transmission should be drained and refilled with new oil every 24
months or 48,000 km (30,000 miles),
whichever comes first.

Maintenance

Correct
level

FILLER

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Power Steering

You should check the fluid level in
the power steering reservoir
monthly. Check the level when the
engine is cold. Look at the side of
the reservoir. The fluid should be
between the UPPER LEVEL and LOWER LEVEL. If it is below the
LOWER LEVEL, add power
steering fluid to the UPPER

LEVEL.
Using automatic transmission fluid
or another brand of power steering
fluid will damage the system. Use
only genuine Honda power steering

fluid.

A low power steering fluid levelcan indicate a leak in the system.
Check the fluid level frequently
and have the system inspected as
soon as possible.

Maintenance
UPPER
LEVEL

LOWER
LEVEL
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Air Conditioner

Optional for S model

Your car's air conditioner is a
sealed system. Any major mainte-
nance, such as recharging, should
be done by a qualified technician. There are a couple of things you
can do to make sure the air condi-
tioner works efficiently. Periodically check the engine's
radiator and air conditioning
condenser for leaves, insects, and
dirt stuck to the front surface.
These block the air flow and
reduce cooling efficiency. Use a light spray from a hose or a soft
brush to remove them.
The condenser and radiator fins
bend easily. Only use a low- pressure spray or soft-bristle brush

to clean them.

Run the air conditioner at least
once a week during the cold
weather months. Run it for at least ten minutes while you are driving
at a steady speed with the engine at
normal operating temperature.
This circulates the lubricating oil contained in the refrigerant. If the air conditioner does not get
as cold as before, it is probably
because some of the refrigerant has
leaked from the system. Have your dealer check the system for leaks
and recharge the system with
Refrigerant 12 (R-12).
Charging quantity: 750 — 800 g (26.5 — 28.3 oz)
Whenever you have the air condi-
tioning system serviced, make sure
the service facility uses a refrige-
rant recycling system. This system captures the refrigerant for reuse.
Releasing refrigerant into the at-
mosphere can damage the environ-
ment.

Maintenance

AIR CONDITIONING

CONDENSER
NOTICE
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Engine Belts, Tires

Engine Belts

Check the condition of the two
engine belts. Examine the edges of
each belt for cracks or fraying.
Check the tension of each belt by pushing on it with your thumb
midway between the pulleys.
The belts should have the following "play" or deflection.
Alternator belt:
10.0 — 12.0 mm (0.39 — 0.47 in)

Power steering belt:
13.5 — 16.5
mm
(0.53
—
0.65 in)
If you see signs of wear or loose-

ness, have your dealer adjust or

replace the belts. Your dealer will
check these belts as part of the

normal scheduled maintenance.
Tires

Check the inflation and condition
of your car's tires at least once a

month.

Inflation

Check the pressure in the tires
when they are cold. This means the car has been parked for at least
three hours. If you have to drive
the car before checking the tire
pressure, the tires can still be
considered "cold" if you drive less than one mile.
If you check the pressure when the
tires are hot (the car has been
driven several miles), you will see
readings 28 to 41 kPa (0.3 to 0.4
kg/cm2, 4 to 6 psi) higher than the
cold reading. This is normal. Do not
let air out to match the specified
cold pressure. The tire will be

underinflated.

Maintenance
POWER STEERING BELT

ALTERNATOR
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Taking Care of the Unexpected
This section covers the more- common problems that motorists
experience with their cars. It gives
you information about how to
safely evaluate the problem and
what to do to correct it. If the problem has stranded you on the
side of the road, you may be able to
get going again. If not, you will also
find instructions on getting your
car towed. Compact Spare Tire..................... 184
Changing a Flat Tire................... 185
If Your Engine Won't Start........ 190 Nothing Happens...................... 190
The Starter OperatesNormally................................ 191
Jump Starting................................ 191 If Your Engine Overheats.......... 193
Low Oil Pressure.......................... 195
Charging System Indication ...... 196
Check Engine Light..................... 197
Closing the Sunroof ..................... 198
Fuses............................................... 199 Checking and Replacing.........
200

Towing...........................................
202

Taking Car e
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If Your Engine Won't Start

Diagnosing why your engine won't
start falls into two areas, depending
on what you hear when you turn
the key to START (III): You hear nothing, or almost
nothing. The engine's starter
motor does not operate at all, or
operates very slowly.
You can hear the starter motor
operating normally, but the
engine does not start up and run. Nothing Happens or the
Starter Motor Operates Very
Slowly
When you turn the ignition switchto START (III), you do not hear the
normal noise of the engine trying to
start. You may hear
a clicking
sound or series of clicks, or nothing
at all.
Check these things:
Check the

transmission interlock.
If you have a 5-speed, the clutch
pedal must be pushed all the way
to the floor or the starter will not operate. With an automatic
transmission, it must be in Park
or Neutral.
Turn the ignition switch to ON
(II). Turn on the headlights and
check their brightness. If the
headlights are very dim or don't
light at all, the battery is dis-
charged.
See Jump Starting on

page 191
.
Turn the ignition switch to

START (III). If the headlights do

not dim, check the condition of

the fuses. If the fuses are OK,

there is probably something
wrong with the electrical circuit

for the ignition switch or starter
motor. You will need a qualified

technician to determine the

problem. (See Towing on page
202.)

If the headlights dim noticeably
or go out when you try to start
the engine, either the battery is

discharged or the connections

are corroded. Check the condi-

tion of the battery and terminal
connections (see page 153 ). You

can then try jump starting the

car from a booster battery (see
page 191).

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If Your Engine Won't Start, Jump Starting

The Starter Operates
Normally

In this case, the starter motor
sounds normal when you turn the
ignition switch to START (III), but
the engine does not run. Are you using the proper starting
procedure? Refer to Starting
the Engine on page 109 . Do you have gas? Turn the
ignition switch to ON (II) for a
minute and watch the fuel gauge.
There may be an electrical
problem, such as no power to the
fuel pump. Check all the fuses
(see page 199 ).

If you find nothing wrong, you will
need a qualified technician to find
the problem. See Towing on page
202.
Jump Starting

If your car's battery has run down,
you may be able to start the engine
by using a booster battery. Although this seems like a simple
procedure, there are several precau-
tions you should take. Follow the
directions closely.
You cannot start a Honda with an
automatic transmision by pushingor pulling it. To jump start your car:
1. Open the hood and check the physical condition of the battery
(see page 152 ). In very cold
weather, check the condition of the electrolyte. If it seems slushy
or like ice, do not try jump
starting until it thaws.
If a battery sits in extreme cold, the
electrolyte inside can freeze.
Attempting to jump start with a frozen battery can cause it to
rupture or explode.
2. Turn off all the electrical acces- sories: heater, A/C, stereo system,
lights, etc. Put the transmission in Neutral
or Park and set the parking
brake.

Taking Care of the Unexpected
CONTINUED
A battery can explode if you
do not follow the correct

procedure, seriously injuring

anyone nearby.

Keep all sparks, open flames,

and smoking materials away

from the battery.
NOTICE
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Jump Starting

3. Connect one jumper cable to the positive (+) terminal on the
booster battery. Connect the
other end to the positive (+)
terminal on your Honda's battery. 4. Connect the second jumper cable
to the negative (—) terminal on
the booster battery. Connect the other end to the grounding strap
as shown. Do not connect this
jumper cable to any other part of
the engine.
5. If the booster battery is in another car, have an assistant
start that car and run it at a fast

idle.
6. Start your car. If the starter
motor still operates slowly, check
the jumper cable connections to
make sure they have good metal-
to-metal contact.
7. Once your car is running, disconnect the negative cable
from your car, then from the
booster battery. Disconnect the positive cable from your car,
then the booster battery.

Taking Care of the Unexpected
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If Your Engine Overheats

6. Look for any obvious coolant
leaks, such as a split radiator
hose. Everything is still extreme-
ly hot, so use caution. If you find
a leak, it must be repaired before
you continue driving (see
Towing on page 202 ).

7. If
you don't find an obvious leak,

check the coolant level in the
radiator reserve tank (see page
139). If the level is below the
MIN mark, add coolant to half-
way between the MIN and MAX
marks.

8. I f
there was no coolant in the
reserve tank, you may also have
to add coolant to the radiator. Let the engine cool down until
the temperature gauge registers
below the midpoint, or lower,
before checking the radiator. 9. Using gloves or a large heavy

cloth, turn the radiator cap
counterclockwise, without
pushing down, to the first stop.
This releases any remaining
pressure in the cooling system.
After the pressure releases, push down on the cap and turn it until
it comes off.

10.Start th e
engine and set the

heater control lever to maximum.
Add coolant to the radiator up to
the base of the filler neck. If you
do not have the proper coolant
mixture available, you can add
plain water. Remember to have
the cooling system drained and
refilled with the proper mixture as soon as you can.

11.Put the radiato
r cap back on

tightly. Run the engine and
watch the temperature gauge. If
it illuminates the red marker
again, the engine needs repair.
(See Towing on page
202.)

12.If th e
temperature stays normal,
check the coolant level in the
radiator reserve tank. If it has
gone down, add coolant to the MAX mark. Put the cap back on

tightly.

Taking Care of the Unexpected
Removing the radiator cap
while the engine is hot can
cause the coolant to spray out, seriously scalding you.
Always let the engine and radiator cool down before
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Low Oil Pressure

The low oil pressure light should never come on when the engine is
running. If this light comes on with
the engine running, take immediate

action.

Running the engine with low oil
pressure can cause serious mechani-
cal damage almost immediately.
Turn off the engine as soon as you
can safely get the car stopped. 1. Safely pull off the road and shut
off the engine.

2. Le
t
the car sit for a minute. Open

the hood and check the oil level
(see page 135). Although oil level
and oil pressure are not directly
connected, an engine that is very
low on oil can lose pressure
during cornering and other
driving maneuvers.

3. I f
necessary, add oil to bring the

level back to the full mark on the
dipstick (see page 135
).

4. Star t
the engine and watch the

oil pressure light. If the light
does not go out within ten
seconds, turn off the engine.
There is a mechanical problem
that needs to be repaired before
you can continue driving. (See
Towin g on

page 202 .
)

Taking Car e
of the Unexpected

LOW OIL PRESSURE LIGHT
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