check engine HONDA PRELUDE 2000 (in English) Owner's Guide

Spar
k Plugs , Batter y

Tighten The spark plugs carefully. A
spark plug That is too loose can overheat and damage The engine.Overtightening can cause damage to
the Threads in the cylinder head. Specifications
:
NGK:

DENSO:

Spark Plug Gap:
0.04 in (1.1 mm
PZFR6F-1
1
PKJ20CR-L1 1
Batter
y

Check the condition of your car's
battery monthly. You should check
the color of the test indicator window, and for corrosion on the terminals.
Maintenanc e

NOTIC
E

7. Install the spark plug cap.
8. Repeat this procedure for the other three spark plugs.
Reinstall the plug wire cover, and
tighten the four nuts.

Ai
r Conditionin g System , Ai r Conditionin g Filte r

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 conditioning 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 con-
tained in the refrigerant. If the air conditioning does not get as
cold as before, have your dealer
check the system. Recharge the

system with Refrigerant HFC-134a

(R-134a). (See Specifications on page
265.)

Whenever you have the air conditioning

system serviced, make sure the service

facility uses a refrigerant recycling
system. This system captures the
refrigerant for reuse. Releasing
refrigerant into the atmosphere can

damage the environment.
Ai
r Conditionin g Filte r
The air conditioning filter removes pollen and dust from the outside air
the climate control system brings
into the interior.
This filter should be replaced every 30,000 miles (48,000 km) under
normal conditions. It should be
replaced every 15,000 miles (24,000
km) if you drive primarily in urban areas that have high concentrations
of soot in the air from industry and
diesel-powered vehicles. Replace it
more often if air flow from the
heating and cooling system becomes
less than usual. Have the air conditioning filter replaced by your
Honda dealer.

Maintenance

NOTIC
E NOTIC
E

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g Car e o f th e Unexpecte d

This section covers the more- common problems that motorists
experience with their vehicles. 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....................... 236
Changing a Flat Tire ..................... 237
If Your Engine Won't Start........... 242
Nothing Happens or theStarter Motor OperatesVery Slowly............................. 243
The Starter Operates Normally................................. 244
Jump Starting................................. 244 If Your Engine Overheats............. 246Low Oil Pressure Indicator.......... 248
Charging System Indicator........... 249
Malfunction Indicator Lamp ........ 250
Brake System Indicator................ 251
Closing the Moonroof................... 252

Fuses...............................................253

Checking and Replacing........... 254
Emergency Towing....................... 258
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I
f You r Engin e Won' t Star t

Nothin g Happen s o r th e Starte r
Moto r Operate s Ver y Slowl y
When you turn the ignition switch to 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: Your car has the Immobilizer
System. You should use a
properly-coded master or valet key
to start the engine (see page 71).
A key that is not properly coded will cause the immobilizer systemindicator in the dash panel to blink
rapidly. Check the transmission interlock.
If you have a manual transmission,
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 discharged. See

Jum p Startin g on page 244 .
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 proba-
bly something wrong with the electrical circuit for the ignitionswitch or starter motor. You will
need a qualified technician to
determine the problem. (See

Emergenc y Towin g on page 258.)
If the headlights dim noticeably or
go out when you try to start the engine, either the battery is dis-
charged or the connections are
corroded. Check the condition of the
battery and terminal connections (see page 198). You can then try
jump starting the car from a booster battery (see page 244).
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If You r Engin e Won' t Start , Jum p Startin g
The Starte r Operate s Normall y
In this case, the starter motor's speed sounds normal, or even faster
than normal, when yon turn the
ignition switch to START (III), but
the engine does not run.
Are you using the proper starting procedure? Refer to Startin g th e
Engin e on page 141.
Do you have fuel? Turn the
ignition switch to ON (II) for a
minute and watch the fuel gauge.
The low fuel level warning light may not be working, so you werenot reminded to fill the tank.
There may be an electrical problem, such as no power to the
fuel pump. Check all the fuses
(see page 254).
If you find nothing wrong, you will
need a qualified technician to find
the problem. See Emergenc y
Towin g on page 258 . Jum
p Startin g
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,
you should take several precautions.
You cannot start a Honda with an automatic transmission by pushing
or pulling it. To jump start your car, follow these
directions closely:
1. Open the hood and check the physical condition of the battery(see page 198). In very cold
weather, check the condition of the electrolyte. If it seems slushyor 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.
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.
Takin g Car e o f th e Unexpecte d
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.
NOTIC E

Jum
p Startin g

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 theother 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 vehicle, have an assistant startthat vehicle 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, discon- nect the negative cable from your
car, then from the booster battery.
Disconnect the positive cable from
your car, then the booster battery.
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BOOSTE
R BATTER Y

I
f You r Engin e Overheat s

6. Look for any obvious coolant leaks, such as a split radiator hose.
Everything is still extremely hot, so use caution. If you find a leak, it
must be repaired before you
continue driving (see Emergenc y
Towin g on page 258).
7. If you don't find an obvious leak, check the coolant level in the
radiator reserve tank (see page131). If the level is below the
MIN mark, add coolant to halfway
between the MIN and MAX marks.
8. If there was no coolant in the reserve tank, you may also have toadd coolant to the radiator. Let the
engine cool down until the pointer
reaches the middle of the tempera-
ture gauge, or lower, before check- ing 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 the engine and set the
temperature control lever tomaximum. 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 coolingsystem drained and refilled with
the proper mixture as soon as you
can.

11. Put the radiator cap back on tightly. Run the engine and watchthe temperature gauge. If it goes
back to the red mark, the engine
needs repair. (See Emergenc y
Towin g on page 258.)
12. If the 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.

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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.

Lo
w Oi l Pressur e Indicato r
LO W OI L PRESSUR E INDICATO R

This indicator should light when the ignition switch is ON (II), and go out
after the engine starts. It shouldnever come on when the engine is
running. If it starts flashing, it
indicates that the oil pressure dropped very low for a moment, then
recovered. If the indicator stays on
with the engine running, it shows
that the engine has lost oil pressure
and serious engine damage is
possible. In either case, you should
take immediate action.
Running the engine with low oil
pressure can cause serious mechanical damage almost immediately. Turn offthe engine as soon as yon can safely get
the car stopped.

1. Safely pull off the road and shut off the engine. Turn on the hazard
warning indicators.
2. Let the car sit for a minute. Open the hood and check the oil level(see page 130). 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. If necessary, add oil to bring the level back to the full mark on thedipstick (see page 181). 4. Start the engine and watch the oil
pressure indicator. If the lightdoes 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 Emergenc y
Towin g on page 258.)

Takin g Car e o f th e Unexpecte d NOTIC
E

Malfunctio
n Indicato r Lam p

This indicator comes on for a few seconds when you turn the ignition
switch ON (II). If it comes on at any
other time, it indicates one of the
engine's emissions control systems
may have a problem. Even though
you may feel no difference in your car's performance, it can reduce
your fuel economy and cause your car to put out excessive emissions.
Continued operation may cause
serious damage.
If you have recently refueled your
car, the cause of this indicator
coming on could be a loose or
missing fuel fill cap. Check the cap
and tighten it until it clicks several
times. Replace the fuel fill cap if it is
missing. Tightening the cap will not
make the indicator turn off
immediately; it takes three driving

trips.

If the indicator remains on past three
driving trips, or the fuel cap was not
loose or missing, have the car
checked by the dealer as soon as
possible. Drive moderately until the dealer has inspected the problem.
Avoid full-throttle acceleration and driving at high speed.
You should also have the dealer inspect your car if this indicator
comes on repeatedly, even though it
may turn off as you continue driving. If you keep driving with the
malfunction indicator lamp on, you can
damage your car's emissions controls and engine. Those repairs may not be
covered by your car's warranties.

Takin g Car e o f th e Unexpecte d
MALFUNCTIO
N INDICATO R LAM P NOTIC
E

Brak
e Syste m Indicato r

The Brake System indicator light comes on when you turn the ignitionON (II). If the parking brake is not
set, it goes off after you start the
engine. If the parking brake is set, it
goes off when you fully release the
parking brake with the engine running.
If it comes on at any other time, it
indicates a problem with the car's
brake system. In most cases, the
problem is a low fluid level in the brake fluid reservoir. Press lightly on
the brake pedal to see if it feels
normal. If it does, check the brake
fluid level the next time you stop at a service station (see page 193 ). If the
fluid level is low, take the car to your dealer and have the brake system
inspected for leaks or worn brake

pads.

However, if the brake pedal does not
feel normal, you should take
immediate action. Because of the
brake system's dual-circuit design, a
problem in one part of the system
will still give you braking at two wheels. You will feel the brake pedal
go down much farther before the car
begins to slow down, and you will
have to press harder on the pedal.
The distance needed to stop will be much longer.
Slow down by shifting to a lower
gear, and pull to the side of the road
when it is safe. Because of the longer distance needed to stop, it is
hazardous to drive the car. Youshould have it towed, and repaired as
soon as possible. (See Emergenc y
Towin g on page 258.)
If you must drive the car a short distance in this condition, drive
slowly and cautiously.
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BRAK
E SYSTE M INDICATO R