2004 TOYOTA 4RUNNER fuel cap

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2004 4RUNNER from Aug. ’03 Prod. (OM35811U)
Some states have vehicle emission in-
spection programs which include OBD
(On−Board Diagnostics) che cks.
The OBD system monitors the operation
of the emission control system. When the
OBD system determines that a problem
exists somewhere in the emission control
system, the malfunction indicator lamp
comes on. In this case, your vehicle may
not pass the I/M test and need to be
repaired. Contact your Toyota dealer to
service the vehicle.
Even if the malfunction indicator lamp
does not come on, your vehicle may not
pass the I/M test as readiness codes
have not been set in the OBD system.
Readiness codes are automatically set
during ordinary driving. However, when the
battery is disconnected or run down, the
codes are erased. Also, depending on
your driving habits, the codes may not be
completely set.
Also, if the malfunction indicator lamp had
come on recently due to temporary mal-
function such as a loose fuel tank cap,
your vehicle may not pass the I/M test. The malfunction indicator lamp will go off
after taking several driving trips, but the
error code in the OBD system will not be
cleared unless about 40 trips or more are
taken.
If your vehicle does not pass the I/M test
even the malfunction indicator lamp does
not come on, contact your Toyota dealer
to prepare the vehicle for re
−testing.
Emissions Inspection and
Maintenance (I/M) programs

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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 advisable.)
Right after driving, the engine
compartment—the engine, radiator,
exhaust manifold, power steering
fluid reservoir and spark plug
boots, etc.—will be hot. So be care-
ful not to touch them. Oil, fluids
and spark plugs may also be hot.
If the engine is hot, do not remove
the radiator cap or loosen the drain
plugs to prevent burning yourself.
Do not smoke, cause sparks or al-
low open flames around fuel or the
battery. Their fumes are flammable.
Do not get under your vehicle with
just the body jack supporting it. Al-
ways use automotive jack stands or
other solid supports.
Use eye protection whenever you
work on or under your vehicle
where you may be exposed to flying
or falling material, fluid spray, etc.
Used engine oil contains potentially
harmful contaminants which may
cause skin disorders such as in-
flammation or skin cancer, so care
should be taken to avoid prolonged
and repeated contact with it. To re-
move used engine oil from your
skin, wash thoroughly with soap
and water.
Do not leave used oil within the
reach of children.
Dispose of used oil and filter only
in a safe and acceptable manner.
Do not dispose of used oil and fil-
ter in household trash, in sewers or
onto the ground. Call your dealer or
a service station for information
concerning recycling or disposal.
Be extremely cautious when work-
ing on the battery. It contains poi-
sonous and corrosive sulfuric acid.
NOTICE
Remember that battery and ignition
cables carry high currents or volt-
ages. Be careful of accidentally
causing a short circuit.
 Add only “Toyota Super Long Life
Coolant” or similar high quality eth-
ylene glycol based nonsilicate,
nonamine, nonnitrite, and nonbo-
rate coolant with longlife hybrid
organic acid technology to fill the
radiator. And if you spill some of
the coolant, be sure to wash it off
with water to prevent it from dam-
aging the parts or paint.
 Do not allow dirt or anything else
to fall through the spark plug holes.
 Use only spark plugs of the speci-
fied type. Using other types will
cause engine damage, loss of per-
formance or radio noise.
 Do not reuse iridiumtipped spark
plugs by cleaning or regapping.
 Do not overfill automatic transmis-
sion fluid, or the transmission
could be damaged.

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2004 4RUNNER from Aug. ’03 Prod. (OM35811U)
Oil identification marks
Either or both API registered marks are
added to some oil containers to help
you select the oil you should use.
The API Service Symbol is located any-
where on the outside of the container.
The top portion of the label shows the oil
quality by API (American Petroleum Insti-
tute) designations such as SL. The center
portion of the label shows the SAE viscos-
ity grade such as SAE 5W −30. “Energy −
Conserving” shown in the lower portion,
indicates that the oil has fuel −saving ca-
pabilities.
The ILSAC (International Lubricant Stan-
dardization and Approval Committee) Certi-
fication Mark is displayed on the front of
the container.
To ensure excellent lubrication perfor-
mance for your engine, “Toyota Genuine
Motor Oil” is available, which has been
specifically tested and approved for all
Toyota engines.
Please contact your Toyota dealer for fur-
ther details about “Toyota Genuine Motor
Oil”. Look at the seethrough coolant reser-
voir when the engine is cold. The cool-
ant level is satisfactory if it is between
the “F” and “L” lines on the reservoir.
If the level is low, add the coolant. (For
the coolant type, see “Coolant type
selection” described below.)
The coolant level in the reservoir will vary
with engine temperature. However, if the
level is on or below the “L” line, add
coolant. Bring the level up to the “F” line.
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 en-
gine is hot.
Checking the engine coolant
level

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Tire pressure gauge
INSPECTION AND ADJUSTMENT
PROCEDURE 1. Remove the tire valve cap.
2. Press the tip of the tire pressure gauge to the tire valve.
3. Read the pressure using a gradua- tion of the gauge.
4. In case that the tire inflation pres- sure is not within the prescribed
range, insert the compressed air
from the valve. In case of applying
too much air, press the center of
t he valv e and releas e the air to ad-
just. 5. After completing the tire inflation
pressure measurement and ad-
justment, apply soap water to the
valve and check the leakage.
6. Install the tire valve cap.
If the gauge and the air pump are not
available, have your vehicle checked
by your Toyota dealer.
CAUTION
Be sure to reinstall the tire 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 pos-
sible.
NOTICE
Use only the original valve cap.
If any other valve cap is used,
it may corrode or melt and be-
come difficult or impossible to
remove.
Incorrect tire infl ation pressure may
waste fuel, reduce the comfort of driv-
ing, reduce tire life and make your ve-
hicle less safe to drive.
If a tire frequently needs refilling,
have it checked by your Toyota deal-
er.
CAUTION
Keep your tires properly inflated.
Otherwise, the following condi-
tions may occur and cause an ac-
cident resulting in death or seri-
ous injuries.
Low tire pressure ( underinfla-
tion)—
 Excessive wear
 Uneven wear
 Poor handling
 Possibility of blowouts from
overheated tire.
 Poor sealing of the tire bead

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2004 4RUNNER from Aug. ’03 Prod. (OM35811U)
Model:
1GR −FE and 2UZ −FE
Type: 1GR −FE engine
6 cylinder V type, 4 cycle, gasoline
2UZ− FE engine
8 cylinder V type, 4 cycle, gasoline
Bore and stroke, mm (in.): 1GR −FE engine
94.0 95.0 (3.70 3.74)
2UZ− FE engine
94.0 84.0 (3.70 3.31)
Displacement, cm
3 (cu. in.):
1GR −FE engine 3956 (241.4)
2UZ− FE engine 4664 (284.6) Fuel type:
Unleaded gasoline, Octane Rating 87
(Research Octane Number 91) or higher.
For improved vehicle performance, the
use of premium unleaded gasoline with
an Octane Rating of 91 (Research Oc-
tane Number 96) or higher is recom-
mended.
Fuel tank capacity, L (gal., Imp. gal.): 87 (23.0, 19.1) ENGINE
Valve clearance (engine cold), mm (in.):
1GR −FE engine
Intake 0.15—0.25 (0.006—0.010)
Exhaust 0.29—0.39 (0.011—0.015)
2UZ− FE engine
Intake 0.15—0.25 (0.006—0.010)
Exhaust 0.25—0.35 (0.010—0.014)
Spark plug type: 1GR −FE engine
DENSO K20HR−U11
NGK LFR6C11
2UZ− FE engine
DENSO SK20R11
NGK IFR6A11
Spark plug gap, mm (in.): 1.1 (0.043)
ENGINE LUBRICATION
Oil capacity (drain and refill), L (qt., Imp.
qt.): 1GR −FE engine
With filter 5.2 (5.5, 4.6)
Without filter 4.9 (5.2, 4.3)
2UZ− FE engine
With filter 6.2 (6.5, 5.5)
Without filter 5.7 (6.0, 5.0)
Engine FuelService specifications

’04 4Runner_U (L/O 0308)
2004 4RUNNER from Aug. ’03 Prod. (OM 35811U)
I
Publication No. OM35811U
Part No. 01999-35811
Printed in Japan 01−0308 −00
4 (U)
Quick index
 If a service reminder indicator or warning buzzer comes on 137 . . . . . . . .
 If your vehicle will not start 316 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. .
 If your engine stalls while driving 319 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 If your vehicle overheats 320 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . .
 If you have a flat tire 321 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . .
 If your vehicle needs to be towed 331 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 Tips for driving during break −in period 271 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 How to start the engine 298 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . .
 General maintenance 347 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . .
 Complete index NO TAG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . .
Gas station information
Fuel type:
UNLEADED gasoline, Octane Rating 87 (Research Octane Number 91)
or higher.
For improved vehicle performance, the use of premium unleaded gaso-
line with an Octane Rating of 91 (Research Octane Number 96) or
higher is recommended.
See page 271 for detailed information.
Fuel tank capacity:
87 L (23.0 gal., 19.1 lmp. gal.)
Engine oil:
API grade SL “Energy −Conserving” or ILSAC multigrade engine oil is
recommended.
See page 361 for detailed information.
Tire information: See pages 368 through 375.
Tire inflation pressure: See page 394.
U1
Gas Stati on Inform ati on