1998 TOYOTA 4RUNNER low oil pressure

4RUNNER (1998)
Indicator symbols on the instrument panel
Automatic transmission fluid temperatu
light*
1
SRS airbag warning light *
1
Unengaged ºParkº warning light *
1
Anti-lock brake system warning light *
1
Seat belt reminder light
*
1
Open door warning light *
1
(type A)
(type B)
Low oil pressure warning light *
1

Low fuel level warning light *
1
Brake system warning light
*
1
Discharge warning light *
1
Malfunction indicator lamp *
1
Low windshield washer fluid level warn
Headlight high beam indicator light
Overdrive- off indicator light
Turn signal indicator lights

4RUNNER (1998)
(a) Brake System Warning Light
This light has the following functions:
Parking brake reminder
If this light is on, make sure the park-
ing brake is fully released. The light
should go off.
Low brake fluid level warning
If this light comes on and stays on
while you are driving, slow down and
pull off the road. Then stop the ve-
hicle carefully. There may be a prob-
lem somewhere in the brake system.
Check the fluid level of the see-
through reservoir.
To make sure the parking brake has
not caused the warning light to come
on, check to see that the parking
brake is fully released.
If the brake fluid level is low...
At a safe place, test your brakes by
starting and stopping.
If you judge that the brakes still
work adequately, drive cautiously to
your nearest dealer or shop for re-
pairs.
If the brakes are not working, have
the vehicle towed in for repairs.
(For towing information, see Part
4.)CAUTION
It is dangerous to continue driv-
ing normally when the brake fluid
level is low.
If the brake fluid level is correct...
Have the warning system checked by
your Toyota dealer.
(b) Seat Belt Reminder Light and
Buzzer
Once the ignition key is turned to
ºONº or ºSTARTº, the reminder light
and buzzer come on if the driver's
seat belt is not fastened. Unless the
driver fastens the belt, the light keeps
on flickering and the buzzer sounds
for about 4 to 8 seconds.
(c) Discharge Warning Light
This light warns that the battery is
being discharged.
If it comes on while you are driving,
there is a problem somewhere in the
charging system.
The engine ignition will continue to
operate, however, until the battery is
discharged. Turn off the air condition-
ing, blower, radio, etc., and drive di-
rectly to the nearest Toyota dealer or
repair shop.
NOTICE
Do not continue driving if the en- gine drive belt is broken or loose.
(d) Low Oil Pressure Warning Light
This light warns that the engine oil
pressure is too low.
If it flickers or stays on while you are
driving, pull off the road to a safe
place and stop the engine immediate-
ly. Call a Toyota dealer or qualified
repair shop for assistance.
The light may occasionally flicker
when the engine is idling or it may
come on briefly after a hard stop.
There is no cause for concern if it
then goes out when the engine is ac-
celerated slightly.
The light may come on when the oil
level is extremely low. It is not de-
signed to indicate low oil level, and
the oil level must be checked using
the level dipstick.
NOTICE
Do not drive the vehicle with thewarning light onÐeven for oneblock. It may ruin the engine.

4RUNNER (1998)
Keep the back door and back
window closed while driving. An
open or unsealed back door and
back window, may cause ex-
haust gases to be drawn into
the vehicle. If you must drive
with the trunk lid open to ac-
commodate a large object, close
the windows, open all the
instrument panel vents and
have the heating or cooling sys-
tem deliver fresh air into the
vehicle by turning the fan to
high speed with the air intake
control set at the outside air
position.
To allow proper operation of
your vehicle's ventilation sys-
tem, keep the inlet grilles in
front of the windshield clear of
snow, leaves, or other obstruc-
tions.
If you smell exhaust fumes in
the vehicle, drive with the win-
dows open and the back door
and back window closed. Have
the cause immediately located
and corrected.FUNCTIONS OF ENGINE OIL
Engine oil has the primary functions
of lubricating and cooling the inside of
the engine, and plays a major role in
maintaining the engine in proper work-
ing order.
ENGINE OIL CONSUMPTION
It is normal that an engine should
consume some engine oil during
normal engine operation. The
causes of oil consumption in a nor-
mal engine are as follows.
Oil is used to lubricate pistons,
piston rings and cylinders. A thin
film of oil is left on the cylinder
wall when a piston moves down-
wards in the cylinder. High nega-
tive pressure generated when the
vehicle is decelerating sucks some
of this oil into the combustion
chamber. This oil as well as some
part of the oil film left on the cylin-
der wall is burned by the high tem-
perature combustion gases during
the combustion process.
Oil is also used to lubricate the
stems of the intake valves. Some
of this oil is sucked into the com-
bustion chamber together with the
intake air and is burned along with
the fuel. High temperature exhaust
gases also burn the oil used to
lubricate the exhaust valve stems.
The amount of engine oil consumed
depends on the viscosity of the oil,
the quality of the oil and the condi-
tions the vehicle is driven under.
More oil is consumed by high- speed
driving and frequent acceleration and
deceleration.
A new engine consumes more oil,
since its pistons, piston rings and cyl-
inder walls have not become condi-
tioned.
When judging the amount of oil
consumption, note that the oil may
become diluted and make it difficult
to judge the true level accurately.
As an example, if a vehicle is used
for repeated short trips, and consumes
a normal amount of oil, the dipstick
may not show any drop in the oil
level at all, even after 1000 km (600
miles) or more. This is because the
oil is gradually becoming diluted with
fuel or moisture, making it appear that
the oil level has not changed.
Facts about engine oil
consumption

4RUNNER (1998)
CAUTION
When making the connections, to
avoid serious injury, do not lean
over the battery or accidentally
let the jumper cables or clamps
touch anything except the correct
battery terminals or the ground.
5. Start your engine in the normal
way. After starting, run it at about
2000 rpm for several minutes with
the accelerator pedal lightly de-
pressed.
6. Carefully disconnect the cables in the exact reverse order: the nega-
tive cable and then the positive
cable.
7. Carefully dispose of the battery cover clothsÐthey may now con-
tain sulfuric acid.
8. If removed, replace all the battery vent plugs.
If the cause of your battery discharg-
ing is not apparent (for example,
lights left on), you should have it
checked. If your engine stalls while driving...
1. Reduce your speed gradually, keep- ing a straight line. Move cautiously
off the road to a safe place.
2. Turn on your emergency flashers.
3. Try starting the engine again.
If the engine will not start, see ºIf
your vehicle will not startº.
CAUTION
If the engine is not running, the
power assist for the brakes and
steering will not work so steering
and braking will be much harder
than usual.
If your vehicle overheats
If your engine coolant temperature
gauge indicates overheating, if you
experience a loss of power, or if
you hear a loud knocking or ping-
ing noise, the engine has probably
overheated. You should follow this
procedure... 1. Pull safely off the road, stop the vehicle and turn on your emergen-
cy flashers. Put the transmission in
ºPº (automatic) or neutral (manual)
and apply the parking brake. Turn
off the air conditioning if it is being
used.
2. If coolant or steam is boiling out of the radiator or reservoir, stop the
engine. Wait until the steam sub-
sides before opening the hood. If
there is no coolant boiling over or
steam, leave the engine running.
CAUTION
To help avoid personal injury,
keep the hood closed until there
is no steam. Escaping steam or
coolant is a sign of very high
pressure.
If your engine stalls while
driving

4RUNNER (1998)
The top portion of the label shows the
oil quality by API (American Petroleum
Institute) designations such as SJ.
The center portion of the label shows
the SAE
viscosity grade such as SAE 5W- 30.
ºEnergy- Conservingº shown in the
lower portion, indicates that the oil
has fuel- saving capab ilities.
The ILSAC (International Lubricant
Standardization and Approval Commit-
tee) Certification Mark is displayed on
the front of the container. Look at the see- through coolant
reservoir when the engine is cold.
The coolant level is satisfactory if
it is between the ºF (Full)º and ºL
(Low)º lines on the reservoir. If the
level is low, add ethylene- glycol
type coolant.
The coolant level in the reservoir will
vary with engine temperature. Howev-
er, if the level is on or below the ºLº
line, add coolant. Bring the level up
to the ºFº line.
Use only ethylene- glycol type coolant.
See information in the next column.
If the coolant level drops within a
short time after replenishing, there
may be a leak in the system. Visually
check the radiator, hoses, radiator cap
and drain cock and water pump.
If you can find no leak, have your
Toyota dealer test the cap pressure
and check for leaks in the cooling
system.
CAUTION
To prevent burning yourself, do
not remove the radiator cap when
the engine is hot.
Coolant type selection
Your coolant must contain ethylene-
glycol antifreeze. In addition to pre-
venting freezing and subsequent dam-
age to the engine, this will also
prevent corrosion. Further supplemen-
tal inhibitors or additives are neither
needed nor recommended.
Read the antifreeze container for in-
formation on freeze protection. Follow
the manufacturer 's directions for how
much to mix with water. The total ca-
pacity of the cooling system is given
in Part 8. We recommend 50% solu-
tion be used for your Toyota, or a
sufficient quantity to provide protection
to about -35
C (- 31 F).
NOTICE
Do not use alcohol type antifreeze
or plain water alone.
Checking the engine coolan
level