2003 TOYOTA 4RUNNER brake fluid

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2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
Battery condition
Check the battery condition by the indica-
tor color. See page 340 in Section 73 for
additional information.
Brake fluid level
Make sure the brake fluid level is correct.
See page 328 in Section 72 for addition-
al information.
Engine oil level
Check the level on the dipstick with the
engine turned off and the vehicle parked
on a level spot. See page 324 in Section
72 for additional information.
Power steering fluid level
Check the level through the reservoir. The
level should be in the “HOT” or “COLD”
range depending on the fluid temperature.
See page 329 in Section 72 for addition-
al information.
Exhaust system
If you notice any change in the sound of
the exhaust or smell exhaust fumes, have
the cause located and corrected immedi-
ately. (See “Engine exhaust cautions” on
page 247 in Section 2.) Be on the alert for changes in perfor-
mance, sounds, and visual tipoffs that
indicate service is needed. Some impor-
tant clues are as follows:
Engine missing, stumbling, or pinging
Appreciable loss of power
Strange engine noises
A leak under the vehicle (however, wa-
ter dripping from the air conditioning
after use is normal.)
Change in exhaust sound (This may
indicate a dangerous carbon monoxide
leak. Drive with the windows open and
have the exhaust system checked im-
mediately.)
Flatlooking tire; excessive tire squeal
when cornering; uneven tire wear
Vehicle pulls to one side when driving
straight on a level road
Strange noises related to suspension
movement
Loss of brake effectiveness; spongy
feeling brake pedal; pedal almost
touches floor; vehicle pulls to one side
when braking
Engine coolant temperature continually
higher than normalIf you notice any of these clues, take your
vehicle to your Toyota dealer as soon as
possible. It probably needs adjustment or
repair.
CAUTION
Do not continue driving with the ve-
hicle unchecked. It could result in se-
rious vehicle damage and possibly
personal injury.
Does your vehicle need
repairing?

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2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
1. Windshield and back window washer
fluid tank
2. Power steering fluid reservoir
3. Engine oil level dipstick
4. Engine coolant reservoir
5. Engine oil filler cap
6. Brake fluid reservoir
7. Fuse block
8. Battery
9. Condenser
10. Radiator
Engine compartment overview
 1GRFE engine

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2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
1. Windshield and back window washer
fluid tank
2. Power steering fluid reservoir
3. Engine coolant reservoir
4. Engine oil level dipstick
5. Engine oil filler cap
6. Brake fluid reservoir
7. Fuse block
8. Battery
9. Condenser
10. Radiator

2UZFE engine

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2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
Be careful not to scratch the glass
surface with the wiper frame.
 When closing the engine hood,
check to see that you have not for-
gotten any tools, rags, etc.Here is a list of parts and tools you will
need to perform doityourself mainte-
nance. Remember all Toyota parts are de-
signed in metric sizes, so your tools must
be metric.
CHECKING THE ENGINE OIL LEVEL
Parts (if level is low):
“Toyota Genuine Motor Oil” or equiva-
lent
See page 325 in Section 72 for de-
tails about engine oil selection.
Tools:
Rag or paper towel
Funnel (only for adding oil)
CHECKING THE ENGINE COOLANT
LEVEL
Parts (if level is low):
“Toyota Genuine Long Life Coolant” or
equivalent
See page 326 in Section 72 for de-
tails about coolant type selection.
Demineralized or distilled water
Tools:
Funnel (only for adding coolant) CHECKING BRAKE FLUID
Parts (if level is low):
SAE J1703 or FMVSS No.116 DOT 3
brake fluid
Tools:
Rag or paper towel
Funnel (only for adding fluid)
CHECKING POWER STEERING FLUID
Parts (if level is low):
Automatic transmission fluid
DEXRON II or III
Tools:
Rag or paper towel
Funnel (only for adding fluid)
CHECKING BATTERY CONDITION
Tools:
Warm water
Baking soda
Grease
Conventional wrench (for terminal
clamp bolts)
Parts and tools

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2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
DOITYOURSELF MAINTENANCE
Engine and Chassis
Checking the engine oil level 324
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Checking the engine coolant level 326
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Checking the radiator and condenser 328
. . . . . . . . . . . . . . . . . . . . . . . . .
Checking brake fluid 328
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. . . .
Checking power steering fluid 329
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking and replacing the air conditioning filter 330
. . . . . . . . . . . . . . .
Checking tire pressure 332
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. .
Checking and replacing tires 333
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rotating tires 334
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. . . . . . . . . . .
Installing snow tires and chains 335
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing wheels 336
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. . . . . . .
Aluminum wheel precautions 337
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 7 2

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If any of the above parts are extremely
dirty or you are not sure of their condi-
tion, take your vehicle to a Toyota dealer.
CAUTION
To prevent burning yourself, be care-
ful not to touch the radiator or con-
denser when the engine is hot.
NOTICE
To prevent damage to the radiator
and condenser, do not perform the
work by yourself.
To check the fluid level, simply look at
the seethrough reservoir. The level
should be between the “MAX” and
“MIN” lines on the reservoir.
It is normal for the brake fluid level to go
down slightly as the brake pads wear or
when the fluid level in the accumulator is
high.
If the reservoir needs frequent ref illing, it
may indicate a serious mechanical prob-
lem.
If the level is low, add SAE J1703 or
FMVSS No.116 DOT 3 brake fluid to the
brake reservoir. Refilling brake fluid:
1. Turn the ignition switch off.
2. Depress the brake pedal more than 40 times.
3. Remove the reservoir cover by hand. Add brake fluid up to the “MAX” line.
If you do not follow the procedure above,
the reservoir may overflow.
Use only newly opened brake fluid. Once
opened, brake fluid absorbs moisture from
the air, and excess moisture can cause a
dangerous loss of braking.CAUTION
Take care when filling the r eservoir
because brake fluid can harm your
eyes and damage painted surfaces. If
fluid gets in your eyes, flush your
eyes with clean water immediately. If
you still feel uncomfortable with your
eyes, go to the doctor.
Checking the radiator and
condenser Checking brake fluid

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2003 4RUNNER from Apr. ’03 Prod. (OM 35820U)
DIFFERENTIAL (2UZFE engine)
Oil capacity, L (qt., Imp. qt.):
Twowheel drive models 3.05 (3.2, 2.7)
Fourwheel drive models Front 1.4 (1.5, 1.2)
Rear 3.05 (3.2, 2.7)
Oil type: Hypoid gear oil API GL5
Recommended oil viscosity:
Above 18 C (0 F)
SAE 90
Below 18 C (0 F)
SAE 80W or 80W90
CHASSIS LUBRICATION
Propeller shafts: Spiders and slide yokesLithium base chassis grease, NLGI
No.2 BRAKES
Minimum pedal clearance when depressed
with the force of 490 N (50 kgf, 110 lbf)
with the engine running, mm (in.):
55 (2.2)
Pedal free play, mm (in.): 1—6 (0.04—0.24)
Pad wear limit, mm (in.): 1.0 (0.04)
Lining wear limit, mm (in.): 1.0 (0.04)
Parking brake adjustment when depressed
with the force of 294 N (30 kgf, 66.1 lbf): 5—7 clicks
Fluid type: SAE J1703 or FMVSS No.116 DOT 3
STEERING
Wheel free play: Less than 30 mm (1.2 in.)
Power steering fluid type: Automatic transmission fluid DEXRON II
or III