cooling HONDA PRELUDE 1992 User Guide

Heating and Cooling

To Heat

To warm the interior, press and select the Fresh Air
mode. Set the fan to the desired
speed. Adjust the warmth of the air
with the temperature control lever.
To warm the interior rapidly after
the car has been sitting out in cold
weather.
1. Start the engine.

2. Select
the Recirculation mode

and

3. Slide the temperature control

lever to maximum heat.

4. Leave
the fan OFF for the first

few minutes. When the tempera-
ture gauge rises above the bot-
tom white mark, set the fan to
medium speed.

5. Whe
n
the interior warms up,
switch to fresh air mode and
adjust the temperature control
lever to a comfortable setting.
To Defrost

To remove frost or ice from the
windshield and side windows after the car has been sitting out in cold
weather.

1. Start the engine.

2. Selec t
the Recirculation mode

and

3. Open

the side defroster vents.

4. Set the fan and temperature

controls to maximum.

These settings
direct all the air
flow to the defroster vents at the
base of the windshield and the side
window defroster vents. The air
flow will get warmer and clear the
windows faster as the engine
warms up. You can close the corner
vents with the dial beside each vent.
That will send more warm air to
the side defroster vents.
For safety, make sure you have a
clear view through all the windows
before driving away.
To Turn Everything Off

To shut off the system temporarily,
slide the fan speed and temperature
control levers all the way to the left.
You should only shut the system completely off for the first few
minutes of driving in cold weather,
until the engine coolant warms up
enough to operate the heater. Keep
the fan on at all other times so stale
air does not build up in the interior.
Comfort and Convenience FeaturesProCarManuals.comMain Menu Table of Contents s t

Maintenance

Regularly maintaining your Honda
is the best way to protect your investment. You will be rewarded
with safer, more economical,
trouble-free driving. This section
lists items that need to be checked
regularly and explains how to check them. It also details some
simple maintenance tasks you can

do yourself. The maintenance

schedules for normal and severe
driving conditions show you when
these things need to be done.
If you are interested in how to per-
form more complex maintenance
on your Honda, you can purchase
the Service Manual. See page 221 for information on how to
obtain a copy, or see your Honda

dealer.
Maintenance Schedule................ 128
Maintenance Record................ 131
Periodic Checks............................ 133
Fluid Locations............................. 134

Engine Oil...................................... 135
Checking Engine Oil................ 135

Adding........................................ 135
Recommended Oil.................... 136

Additives.................................... 136 Oil and Filter Changes ............ 137
Cooling System............................. 139 Checking the Coolant Level... 139
Adding Radiator Coolant........ 139
Replacing Coolant.................... 140
Windshield Washers.................... 143

Transmission Oil.......................... 144
Automatic Transmission........ 144
5-speed Transmission.............. 145

Brake and Clutch Fluid............... 146
Brake System............................ 146
Anti-lock Brake System ......... 147 Clutch System........................... 147
Power Steering............................. 148

Air Filter....................................... 149
Fuel Filter..................................... 150

Spark Plugs.................................. .
150
Replacement.............................. 150
Specification.............................. 152
Battery............................................ 152
Windshield Wipers....................... 155
Air Conditioner............................. 157 Engine Belts.................................. 158
Tires................................................ 158 Inflation...................................... 158
Inspection................................... 159
Maintenance.............................. 160
Tire Rotation............................ 160
Replacing Tires ........................ 161
Wheels and Tires...................... 161
DOT Tire Quality Grading..... 161 Treadwear............................. 161
Traction................................. 162
Temperature......................... 162
Winter Driving.......................... 163 Snow Tires............................ 163
Tire Chains............................ 163
Lights.............................................. 164
Replacing Bulbs........................ 164
Storing Your Car.......................... 173

MaintenanceProCarManuals.comMain Menu s t

Cooling System

Checking the Coolant Level

Check the level of the engine
coolant by looking at the radiator
reserve tank next to the battery. If
the level is at or below the MIN line, add coolant to bring it up to the
MAX line. This coolant should
always be a mixture of 50%
antifreeze and 50% water. Never
add straight antifreeze or plain
water. Always use Genuine Honda Anti-
freeze/Coolant. The cooling system contains many aluminum compo-
nents which can corrode if an
improper antifreeze is used. Some
antifreeze, even though labeled as
safe for aluminum parts, may not
provide adequate protection.
Adding Radiator Coolant

If the reserve tank is completely
empty, you should also check the
coolant level in the radiator.
1. Make sure the engine and radiator are cool.

CONTINUED

Maintenance

RESERVE TANK

MAX
MIN

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
removing the radiator cap.ProCarManuals.comMain Menu Table of Contents s t

Cooling System

2. Turn the radiator cap counter- clockwise, without pressing
down on it, until it stops. This
relieves any pressure remaining
in the cooling system.
3. Remove the radiator cap by pushing down and turning
counterclockwise.
4. The coolant level should be up to
the base of the filler neck. Add
coolant if it is low.
5. Put
the radiator cap back on.
Tighten it fully.
6. Pour coolant into the reserve tank. Fill it to halfway between
the MAX and MIN marks. Put
the cap back on the reserve tank.

Do no t
add any rust inhibitors or
other additives to your car's
cooling system. They may not be
compatible with the coolant or
engine components.

Replacing Coolant

The cooling system should be
completely drained and refilled
with new coolant according to the
time and mileage recommendations in the maintenance schedule. Only
use recommended antifreeze.
Draining the coolant requires
access to the underside of the car.
Unless you have the tools and
knowledge, you should have this
maintenance done by a skilled
mechanic.

Maintenance
RADIATOR CAP
RESERVE TANKProCarManuals.comMain Menu Table of Contents s t

Cooling System

1. Slide the heater temperature control lever to maximum heat.
Open the hood. Make sure the
engine and radiator are cool to

the touch.

2. Remove the radiator cap. 3. Loosen the drain plug on the
bottom of the radiator. The
coolant will drain through the
splash guard. Remove the drain
bolt from the engine block. 4. Remove the reserve tank from
its holder by pulling it straight up.
Drain the coolant, then put the
tank back in its holder.
5. When the coolant stops draining, tighten the drain plug in the
bottom of the radiator. Apply non-hardening sealant to the
drain bolt threads and reinstall
the bolt in the engine block.
Tighten it securely.

Maintenance

DRAIN
PLUG
DRAIN
BOLT RESERVE TANK

HOLDER
RESERVE

TANK CAP

CONTINUEDProCarManuals.comMain Menu Table of Contents s t

Cooling System

6. Mix the recommended antifreeze with an equal amount of purifiedor distilled water in a clean
container. The cooling system
capacity is:

With 5-speed transmission:

(US: S, Canada: S)
3.5
(0.92 US gal, 0.77 Imp gal)

(US: Si, Si 4WS, Canada: SR, SR 4WS)

3.8
(1.00 US gal, 0.84 Imp gal)
With automatic transmission:
(US: S, Canada: S)
3.4
(0.90 US gal, 0.75 Imp gal)

(US: Si, Si 4WS, Canada: SR, SR 4WS)
3.7
(0.98 US gal, 0.81 Imp gal)

7. Pour coolant into the radiator up to the base of the filler neck.
8. Loosen the bleeder bolt on top ofthe engine. Tighten it again
when coolant comes out in asteady stream with no bubbles.
9. Refill the radiator to the base of the filler neck. Put the cap on the
radiator, only tighten it to the
first stop. Start the engine and
let it run until it warms up (the
radiator cooling fan comes on at
least twice).

Maintenance

FILLER NECK
Fill up to here
BLEEDER
BOLTProCarManuals.comMain Menu Table of Contents s t

Cooling System, Windshield Washers

10.Turn off the engine. Check the
level in the radiator, add coolant
if needed. Install the radiator cap,
tighten it fully.

11.Fill the
reserve tank to the MAX

mark. Install the reserve tank
cap.

Windshield Washers
Chec
k the level in the windshield
washer reservoir at least monthly
during normal usage. In bad
weather, when you use the washers often, check the level every time
you stop for gas.
The windshield washer reservoir is
located behind the left headlight.
Check the reservoir's fluid level by
removing the cap and looking at the float. It should be up to the top of the neck. If the float is at the
bottom of the neck, the reservoir is
nearly empty.
Fill the reservoir with a good- quality windshield washer fluid.
This increases the cleaning
capability and prevents freezing in cold weather.
Do not use engine antifreeze or a
vinegar/water solution in the
windshield washer reservoir.
Antifreeze can damage your car's paint, while a vinegar/water
solution can damage the windshield
washer pump.
Use only commercially-available
windshield washer fluid.

Maintenance

NOTICE

RESERVE TANK
FLOATProCarManuals.comMain Menu Table of Contents s t

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
NOTICEProCarManuals.comMain Menu Table of Contents s t

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
removing the radiator cap.ProCarManuals.comMain Menu Table of Contents s t

Index

5-Speed Transmission,
Shifting the ............................... 111

Flashers, Hazard
Warning ........... 56
Flat Tire, Changing a..................
185
Fluids Automatic Transmission.......
. 144
Brake.......................................... 146
Clutch......................................... 147
Manual Transmission.............. 145
Power Steering......................... 148
Windshield Washer..................
155
FM Stereo
Radio

Reception.............................. 75, 84

Folding Rear Seat.......................... 55
Foreign Countries, Driving in...... 99
Four-way Flashers......................... 56
Four Wheel Steering (4WS)
Description................................ 210

Indicator Light........................... 35

Operation...................................
118

Front End ,
Towing by Emergency

Wrecker..................................... 202

Fuel................................................... 9
8

Fille
r Door and Cap..................
100

Filter........................................... 150

Gauge............................................ 3
8
Octan
e Requirement................. 98

Oxygenated................................. 98

Tank, Filling the ...................... 100

Fuses, Checking the .................... 200

Gas Mileage, Improving.............. 104

Gasohol............................................ 98

Gasoline............................................ 98
Filter...........................................
150

Gauge............................................ 3 8

Octan
e Requirement................. 98
Tank, Filling the ......................
100
Gas Statio n
Procedures...............
100

Gauges

Engine Coolan
t Temperature.. 38

Fuel............................................... 38

Gearshift Lever Positions Automatic Transmission........
112

5-speed Transmission............. .

111

Glass Cleaning.............................
.

180

Glove Box........................................
.
62
Halogen Headlight Bulbs............ 164

Hazard Warning Flashers ............ 56

Headlights
Daytime Running Lights.......... 40

High Beam Indicator................. 35

High Beams, Turning on.......... 40
Low Beams, Turning on........... 40

Reminder Chime........................ 40

Replacing Halogen Bulbs ....... 164

Turning on.................................. 40

Heating and Cooling...................... 68

High Altitude, Starting at...........
110

High-Low Bea m
Switch ............... 40
Hood, Opening the........................
101

Horn.................................................. 4 7

Ho
t Coolant, Warning about......
139

Hydraulic Clutch.........................
.

147

Hydroplaning................................. 119

Identification Number
,

Vehicle......................................
.
204

If You
r
Car Has to be Towed ....
202
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