1998 TOYOTA 4RUNNER fuel cap

4RUNNER (1998)
If you perform maintenance by
yourself, be sure to follow the cor-
rect procedure given in this part.
You should be aware that improper or
incomplete servicing may result in op-
erating problems.
Performing do- it- yourself maintenance
during the warranty period may affect
your warranty coverage. Read the
separate Toyota Warranty statement
for details and suggestions.
This part gives instructions only for
those items that are relatively easy
for an owner to perform. As explained
in Part 6, there are still a number of
items that must be done by a qualified
technician with special tools.
For information on tools and parts for
do- it- yourself maintenance, see ºParts
and toolsº.
Utmost care should be taken when
working on your vehicle to prevent
accidental injury. Here are a few pre-
cautions that you should be especially
careful to observe:
CAUTION
When the engine is running,
keep hands, clothing, and tools
away from the moving fan and
engine drive belts. (Removing
rings, watches, and ties is ad-
visable.)
Right after driving, the engine
compartmentÐthe engine, radia-
tor, exhaust manifold, power
steering fluid reservoir and
spark plug boots, etc.Ðwill be
hot. So be careful not to touch
them. Oil, fluids and spark
plugs may also be hot.
If the engine is hot, do not re-
move the radiator cap or loosen
the drain plugs to prevent burn-
ing yourself.
Do not smoke, cause sparks or
allow open flames around fuel
or the battery. Their fumes are
flammable.
Be extremely cautious when
working on the battery. It con-
tains poisonous and corrosive
sulfuric acid.
Do not get under your vehicle
with just the body jack support-
ing it. Always use automotive
jack stands or other solid sup-
ports.
Do- it- yourself service
precautions

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

4RUNNER (1998)
Checking tire pressure
Keep your tire pressures at the
proper level.
The recommended cold tire pressures,
tire size and the cargo weight rating
are given in Part 8.
You should check the tire pressures
every two weeks, or at least once a
month. And do not forget the spare!
Incorrect tire pressure can reduce
tire life and make your vehicle less
safe to drive.
Low tire pressure results in excessive
wear, poor handling, reduced fuel
economy, and the possib ility of blow-
outs from overheated tires. Also, low
tire pressure can cause poor sealing
of the tire bead. If the tire pressure
is excessively low, there is the possi-
bility of w heel deformation and/or tire
separation.
High tire pressure produces a harsh
ride, handling problems, excessive
wear at the center of the tire tread,
and a greater possibility of tire dam-
age from road hazards.
If a tire frequently needs ref illing,
have it checked by your Toyota deal-
er. The following instructions for
checking tire pressure should be
observed:
The pressure should be checked
only when the tires are cold. If
your vehicle has been packed for
at least 3 hours and has not been
driven for more than 1.5 km or 1
mile since, you will get an accurate
cold tire pressure reading.
Always use a tire pressuregauge. The appearance of a tire
can be misleading. Besides, tire
pressures that are even just a few
pounds off can degrade handling
and ride.
Do not bleed or reduce tire pres-
sure after driving. It is normal for
the tire pressure to be higher after
driving.
Never exceed the vehicle capac-
ity weight. The passenger and lug-
gage weight should be located so
that the vehicle is balanced.
Be sure to reinstall the tire infla-
tion valve caps. Without the valve
caps, dirt or moisture could get
into the valve core and cause air
leakage. If the caps have been
lost, have new ones put on as
soon as possible. Checking and replacing tires

4RUNNER (1998)
Engine
Model: 3RZ- FE and 5VZ- FE
Type: 3RZ- FE engine4 cylinder in line, 4 cycle, gasoline
5VZ- FE engine 6 cylinder V type 4 cycle, gasoline
Bore and stroke, mm (in.): 3RZ- FE engine95.0 x 95.0 (3.74 x 3.74)
5VZ- FE engine
93.5 x 82.0 (3.68 x 3.23)
Displacement, cm 3
(cu. in.):
3RZ- FE engine 2694 (164.3)
5VZ- FE engine
3378 (206.1) Fuel
Fuel type:
Unleaded gasoline, Octane Rating 87
(Research Octane Number 91) or high- er
Fuel tank capacity, L (gal., Imp. gal.): 70 (18.5, 15.4) Service specifications
ENGINE
Valve clearance (engine cold), mm (in.):
3RZ- FE engineIntake 0.15Ð0.25
(0.006Ð0.010)
Exhaust 0 . 2 5 Ð 0 . 3 5
(0.010Ð0.014)
5VZ- FE engineIntake 0.13Ð0.23
(0.006Ð0.009) Exhaust 0 . 2 7 Ð 0 . 3 7
(0.011Ð0.014)
Spark plug type:
3RZ- FE engineDENSO K16R- U
NGK BKR5EYA
5VZ- FE engine DENSO K16TR11
NGK BKR5EKB- 11
Spark plug gap, mm (in.):
3RZ- FE engine 0.8 (0.031)
5VZ- FE engine 1.1 (0.043)