diff TOYOTA 4RUNNER 2001 Service Manual

’01 4Runner_U (L/O 0008)
2152001 4RUNNER (OM35768U)
TRAILER TOWING TIPS
When towing a trailer, your vehicle will
handle differently than when not tow-
ing. The three main causes of vehicle
trailer accidents are driver error, exces-
sive speed and improper trailer loading.
Keep these in mind when towing:
Before starting out, check operation of
the lights and all vehicletrailer connec-
tions. After driving a short distance,
stop and recheck the lights and con-
nections. Before actually towing a trail-
er, practice turning, stopping and back-
ing with a trailer in an area away from
traffic until you learn the feel.
Backing with a trailer is difficult and
requires practice. Grip the bottom of
the steering wheel and move your hand
to the left to move the trailer to the
left. Move your hand to the right to
move the trailer to the right. (This pro-
cedure is generally opposite to that
when backing without a trailer). Also,
just turn the steering wheel a little at
a time, avoiding sharp or prolonged
turning. Have someone guide you when
backing to reduce the risk of an acci-
dent.
Because stopping distance may be in-
creased, vehicletovehicle distance
should be increased when towing a
trailer. For each 16 km/h (10 mph) of
speed, allow at least one vehicle and
trailer length between you and the ve-
hicle ahead. Avoid sudden braking as
you may skid, resulting in jackknifing
and loss of control. This is especially
true on wet or slippery surfaces.
Avoid jerky starts or sudden accelera-
tion.
Avoid jerky steering and sharp turns.
The trailer could hit your vehicle in a
tight turn. Slow down before making a
turn to avoid the necessity of sudden
braking.
Remember that when making a turn,
the trailer wheels will be closer than
the vehicle wheels to the inside of the
turn. Therefore, compensate for this by
making a larger than normal turning
radius with your vehicle.
Crosswinds and rough roads will ad-
versely affect handling of your vehicle
and trailer, causing sway. Pay attention
to the rear from time to time to pre-
pare yourself for being passed by large
trucks or buses, which may cause your
vehicle and trailer to sway. If swaying
happens, firmly grip the steering wheel
and reduce speed immediately but
gradually. Never increase speed. Steer
straight ahead. If you make no extreme
correction with the steering or brakes,
the vehicle and trailer will stabilize.
Be careful when passing other ve-
hicles. Passing requires considerable
distance. After passing a vehicle, do
not forget the length of your trailer and
be sure you have plenty of room befo-
re changing lanes.
In order to maintain engine braking effi-
ciency, do not use overdrive.
Because of the added load of the trail-
er, your vehicle’s engine may overheat
on hot days (at temperatures over
30C [85F]) when going up a long or
steep grade with a trailer. If the engine
coolant temperature gauge indicates
overheating, immediately turn off the air
conditioning (if in use), pull off the road
and stop in a safe spot. Refer to “If
your vehicle overheats” in Section 4.
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’01 4Runner_U (L/O 0008)
2402001 4RUNNER (OM35768U)
Toyota, through its diligent research, de-
sign and use of the most advanced
technology available, has done its part to
help prevent corrosion and has provided
you with the finest quality vehicle
construction. Now, it is up to you. Proper
care of your Toyota can help ensure long
term corrosion prevention.
The most common causes of corrosion
to your vehicle are:
The accumulation of road salt, dirt and
moisture in hardtoreach areas under
the vehicle.
Chipping of paint, or undercoating
caused by minor accidents or by
stones and gravel.
Care is especially important if you live
in particular areas or operate your ve-
hicle under certain environmental condi-
tions:
Road salt or dust control chemicals will
accelerate corrosion, as will the pres-
ence of salt in the air near the sea
coast or in areas of industrial pollution.
High humidity accelerates corrosion es-
pecially when temperatures range just
above the freezing point.
Wetness or dampness to certain parts
of your vehicle for an extended period
of time, may cause corrosion even
though other parts of the vehicle may
be dry.
High ambient temperatures can cause
corrosion to those components of the
vehicle which are prevented from
quickdrying due to lack of proper ven-
tilation.
The above signifies the necessity to keep
your vehicle, particularly the underside, as
clean as possible and to repair any dam-
age to paint or protective coatings as
soon as possible.
To help prevent corrosion on your
Toyota, follow these guidelines:
Wash your vehicle frequently. It is, of
course, necessary to keep your vehicle
clean by regular washing, but to prevent
corrosion, the following points should be
observed:
If you drive on salted roads in the
winter or if you live near the ocean,
you should hose off the undercarriage
at least once a month to minimize cor-
rosion.
High pressure water or steam is effec-
tive for cleaning the vehicle’s underside
and wheel housings. Pay particular
attention to these areas as it is difficult
to see all the mud and dirt. It will do
more harm than good to simply wet the
mud and debris without removing them.
The lower edge of doors, rocker panels
and frame members have drain holes
which should not be allowed to clog
with dirt as trapped water in these
areas can cause corrosion.
Wash the underside of the vehicle thor-
oughly when winter is over.
See “Washing and waxing your Toyota” for
more tips.
Check the condition of your vehicle’s
paint and trim. If you find any chips or
scratches in the paint, touch them up im-
mediately to prevent corrosion from start-
ing. If the chips or scratches have gone
through the bare metal, have a qualified
body shop make the repair.
Protecting your Toyota
from corrosion
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’01 4Runner_U (L/O 0008)
22001 4RUNNER (OM35768U)
Checking the engine oil level
Low level Full level
Add oil O.K. Too full
With the engine at operating tempera-
ture and turned off, check the oil level
on the dipstick.
1. To get a true reading, the vehicle
should be on a level spot. After turning
off the engine, wait a few minutes for
the oil to drain back into the bottom of
the engine.
2. Pull out the dipstick, and wipe it clean
with a rag.
3. Reinsert the dipstick—push it in as far
as it will go, or the reading will not be
correct.
4. Pull the dipstick out and look at the oil
level on the end.If the oil level is below or only slightly
above the low level, add engine oil of
the same type as already in the engine.
Remove the oil filler cap and add engine
oil in small quantities at a time, checking
the dipstick.
The approximate quantity of oil needed to
fill between the low level and the full level
on the dipstick is indicated below for ref-
erence.
When the level reaches within the correct
range, install the filler cap handtight.
Oil quantity, L (qt., lmp. qt.):
1.2 (1.3, 1.1)
NOTICE
Avoid overfilling, or the engine
could be damaged.
Check the oil level on the dipstick
once again after adding the oil.
ENGINE OIL SELECTION
Use API grade SJ, “EnergyConserving”
or ILSAC multigrade engine oil.
Recommended viscosity (SAE):
5W-30 Preferred
Temperature range anticipated before
next oil change
SAE 5W30 is the best choice for your
vehicle, for good fuel economy and
good starting in cold weather.
If you use SAE 10W30 engine oil in
extremely low temperatures, the engine
may become difficult to start, so SAE
5W30 engine oil is recommended.
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’01 4Runner_U (L/O 0008)
82001 4RUNNER (OM35768U)
CAUTION
Do not mix radial, bias belted, or
biasply tires on your vehicle. It
can cause dangerous handling char-
acteristics, resulting in loss of con-
trol.
Do not use tires or wheels other
than the manufacture’s recom-
mended size.
Do not use tires of different brands,
sizes and constructions. This may
damage the drive system and pre-
vent the vehicle skid control system
from functioning correctly.
Toyota recommends all four tires, or at
least both front or rear tires be re-
placed as a set.
See “If you have a flat tire” in Section 4
for tire change procedure.
When a tire is replaced, the wheel
should always be balanced.
An unbalanced wheel may affect vehicle
handling and tire life. Wheels can get out
of balance with regular use and should
therefore be balanced occasionally.When replacing a tubeless tire, the air
valve should also be replaced with a
new one.
Rotating tires
To equalize the wear and help extend
tire life, Toyota recommends that you
rotate your tires according to the main-
tenance schedule. (For scheduled main-
tenance information, please refer to the
“Scheduled Maintenance Guide” or
“Owner ’s Manual Supplement”.) Howev-
er, the most appropriate timing for tire
rotation may vary according to your
driving habits and road surface condi-
tions.
See “If you have a flat tire” in Section 4
for tire change procedure.
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’01 4Runner_U (L/O 0008)
92001 4RUNNER (OM35768U)
When rotating tires, check for uneven
wear and damage. Abnormal wear is usu-
ally caused by incorrect tire pressure, im-
proper wheel alignment, outofbalance
wheels, or severe braking.WHEN TO USE SNOW TIRES OR
CHAINS
Snow tires or chains are recommended
when driving on snow or ice.
On wet or dry roads, conventional tires
provide better traction than snow tires.
SNOW TIRE SELECTION
If you need snow tires, select the same
size, construction and load capacity as
the original tires on your Toyota.
Do not use tires other than those men-
tioned above. Do not install studded tires
without first checking local regulations for
possible restrictions.
SNOW TIRE INSTALLATION
Snow tires should be installed on all
wheels.
Installing snow tires on the front wheels
only can lead to an excessive difference
in road grip capability between the front
and rear tires which could cause loss of
vehicle control.
When storing removed tires, you should
store them in a cool dry place.
Mark the direction of rotation and be sure
to install them in the same direction when
replacing.CAUTION
Do not drive with the snow tires
incorrectly inflated.
Never drive over 120 km/h (75 mph)
with any type of snow tires.
TIRE CHAIN SELECTION
Use the tire chains of correct size.
Regulations regarding the use of tire
chains vary according to location or
type of road, so always check them
before installing chains.
CHAIN INSTALLATION
Install the chains on the rear tires as
tightly as possible. Do not use tire
chains on the front tires. Retighten
chains after driving 0.5—1.0 km
(1/4—1/2 mile).
When installing chains on your tires, care-
fully follow the instructions of the chain
manufacturer.
If wheel covers are used, they will be
scratched by the chain band, so remove
the covers before putting on the chains.
Installing snow tires and
chains
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’01 4Runner_U (L/O 0008)
102001 4RUNNER (OM35768U)
CAUTION
Do not exceed 50 km/h (30 mph) or
the chain manufacturer ’s recom-
mended speed limit, whichever is
lower.
Drive carefully avoiding bumps,
holes, and sharp turns, which may
cause the vehicle to bounce.
Avoid sharp turns or lockedwheel
braking, as use of chains may ad-
versely affect vehicle handling.
When driving with chains installed,
be sure to drive carefully. Slow
down before entering the curves to
avoid losing control of the vehicle.
Otherwise an accident may occur.
Replacing wheels
WHEN TO REPLACE YOUR WHEELS
If you have wheel damage such as
bending, cracks or heavy corrosion, the
wheel should be replaced.
If you fail to replace damaged wheels, the
tire may slip off the wheel or cause loss
of handling control.
WHEEL SELECTION
When replacing wheels, care should be
taken to ensure that the wheels are re-
placed by ones with the same load ca-
pacity, diameter, rim width, and offset.
Correct replacement wheels are available
at your Toyota dealer.
A wheel of a different size or type may
adversely affect handling, wheel and bear-
ing life, brake cooling, speedometer/odom-
eter calibration, stopping ability, headlight
aim, bumper height, vehicle ground clear-
ance, and tire or snow chain clearance to
the body and chassis.Replacement with used wheels is not rec-
ommended as they may have been sub-
jected to rough treatment or high mileage
and could fail without warning. Also, bent
wheels which have been straightened may
have structural damage and therefore
should not be used. Never use an inner
tube in a leaking wheel which is designed
for a tubeless tire.
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’01 4Runner_U (L/O 0008)
2622001 4RUNNER (OM35768U)
Replacing light bulbs—
The following illustrations show how to
gain access to the bulbs. When replacing
a bulb, make sure the ignition switch and
light switch are off. Use bulbs with the
wattage ratings given in the table.
CAUTION
Halogen bulbs have pressurized gas
inside and require special handling.
They can burst or shatter if scratched
or dropped. Hold a bulb only by its
plastic or metal case. Do not touch
the glass part of a bulb with bare
hands.
NOTICE
Only use a bulb of the listed type.
The inside of the lens of exterior lights
such as headlights may temporarily fog up
when the lens becomes wet in the rain or
in a car wash. This is not a problem
because the fogging is caused by the
temperature difference between the outside
and inside of the lens, just like the
windshield fogged up in the rain. However,
if there is a large drop of water on the
inside of the lens, or if there is water
pooled inside the light, contact your
Toyota dealer.Light bulbsBulb
No.WTy p e
Headlights—60/55A
Front fog lights—55B
Parking and front
side marker lights—5C
Front turn signal
lights—21C
Rear turn signal
lights—21D
Stop/tail lights—21/5C
Backup lights—18C
License plate light—5C
High mounted
stoplight92118C
Interior light—8E
Personal lights—8E
Glove box light—1.4C
Luggage
compartment light—8E
A: HB2 halogen bulbs
B: H3 halogen bulbs
C: Wedge base bulbs (clear)
D: Wedge base bulbs (amber)
E: Double end bulbs
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’01 4Runner_U (L/O 0008)
2722001 4RUNNER (OM35768U)
COOLING SYSTEM
Total capacity, L (qt., Imp. qt.):
With rear heater 9.0 (9.5, 7.9)
Without rear heater 8.0 (8.5, 7.0)
Coolant type:
“TOYOTA Long Life Coolant” or equiva-
lent
With ethyleneglycol type coolant for a
proper corrosion protection of aluminum
components
Do not use alcohol type antifreeze or
plain water alone.
BATTERY
Open voltage
∗ at 20C (68F):
12.6—12.8 V Fully charged
12.2—12.4 V Half charged
11.8—12.0 V Discharged
∗: Voltage that is checked 20 minutes af-
ter the key is removed with all the
lights turned off
Charging rates:
5 A max.AUTOMATIC TRANSMISSION
Fluid capacity (drain and refill),
L (qt., Imp. qt.):
Twowheel drive models
Up to 1.6 (1.7, 1.4)
Fourwheel drive models
Up to 2.0 (2.1, 1.8)
Fluid type:
Automatic transmission fluid DII or
DEXRONIII (DEXRONII)
TRANSFER
Oil capacity, L (qt., Imp. qt.):
1.2 (1.3, 1.1)
Oil type:
Gear oil API GL4 or GL5
Recommended oil viscosity:
SAE 75W90DIFFERENTIAL
Oil capacity, L (qt., Imp. qt.):
Twowheel drive models
2.75 (2.9, 2.4)
Fourwheel drive models
Front
1.15 (1.2, 1.0)
Rear
With center differential lock system
2.75 (2.9, 2.4)
Without center differential lock sys-
tem
2.45 (2.6, 2.2)
Oil type:
Hypoid gear oil API GL5
Recommended oil viscosity:
Front
SAE 75W90
Rear
Above 18C (0F)
SAE 90
Below 18C (0F)
SAE 80W or 80W90
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’01 4Runner_U (L/O 0008)
2752001 4RUNNER (OM35768U)
Engine compartment
(with daytime running light system)
5. DOME 15 A: Interior lights, personal
lights, luggage compartment light,
clock, car audio system, gauges and
meters, ignition switch light, vanity mir-
ror light, daytime running light
6. OBD 7.5 A: Onboard diagnosis sys-
tem
7. EFI 20 A: Multiport fuel injection sys-
tem/sequential multiport fuel injection
system
8. HEAD(RH) 10 A: Righthand headlight,
gauges and meters
9. HEAD(LH) 10 A: Lefthand headlight
Instrument panel
10. TAIL 10 A: Tail lights, license plate
lights, instrument panel lights
11. A.C 10 A: Air conditioning system
12. MIR HTR 10 A: Outside rear view mir-
ror heaters
13. DEFOG 15 A: Back window defogger
14. ETCS 15 A: Multiport fuel injection
system/sequential multiport fuel injec-
tion system
15. DRL 7.5 A: Daytime running light sys-
tem
16. HEAD (HI RH) 10 A: Righthand head-
light (high beam), gauges and meters17. HEAD (HI LH) 10 A: Lefthand head-
light (high beam)
18. HEAD (LO RH) 10 A: Righthand
headlight (low beam)
19. HEAD (LO LH) 10 A: Lefthand head-
light (low beam)
20. TOWING 25 A: Trailer lights (backup
lights, rear turn signal lights, stop/tail
lights)
21. SEAT HTR 20 A: Seat heater
22. FOG 15 A: Front fog lights
23. ECUIG 10 A: Cruise control system,
antilock brake system, vehicle skid
control system, SRS airbag system,
electronically controlled automatic
transmission system, power antenna,
power window, electric moon roof, pow-
er back window, back window defogger,
back window wiper
24. TURN 10 A: Turn signals lights, emer-
gency flashers
25. WIPER 25 A: Windshield wipers and
washer, power door lock control sys-
tem, back window defogger, horns,
theft deterrent system
26. 4WD 20 A: A.D.D. control system,
fourwheel drive control system, center
differential lock system
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’01 4Runner_U (L/O 0008)
2762001 4RUNNER (OM35768U)
27. ACC 15 A: Car audio system, power
antenna, clock, power rear view mirror
control, cigarette lighter, seat belt pre-
tensioners, electronically controlled au-
tomatic transmission system, power
outlets, theft deterrent system
28. GAUGE 10 A: Gauges and meters,
back window defogger, daytime running
light system, air conditioning system,
cruise control system, center differen-
tial lock system, electronically con-
trolled automatic transmission, backup
lights
29. IGN 10 A: SRS airbag system, seat
belt pretensioners, multiport fuel injec-
tion system/sequential multiport fuel in-
jection system, discharge warning light,
vehicle skid control system
30. ECUB 7.5 A: Gauges and meters, air
conditioning system
31. HORN,HAZ 15 A: Horns, emergency
flashers
32. STA 7.5 A: Starting system
33. STOP 10 A: Stop lights, highmounted
stoplightFuses (type B)
34. HEATER 50 A: Air conditioning system,
all components in “A.C” fuse
35. AM1 40 A: Starting system, all compo-
nents in “ACC”, “GAUGE”, “TURN”,
“ECUIG”, “WIPER” and “4WD” fuses
36. J/B 50 A: All components in “POWER”,
“HORN,HAZ”, “STOP” and “ECUB”
fuses
37. AM2 30 A: Starting system, multiport
fuel injection system/sequential multi-
port fuel injection system, all compo-
nents in “STA” and “IGN” fuses
38. ABS2 40 A: Antilock brake system,
active traction control system, vehicle
skid control system
39. POWER 30 A: Power window, power
back window, electric moon roof, power
seat, back door lock
Fuses (type C)
40. ABS 60 A: Antilock brake system
41. ALT 120 A: Charging system, all com-
ponents in “AM1”, “HEATER”, “TAIL”,
“RR HTR”, “ALTS”, “DEFOG”, “MIR
HTR” and “ACC” fuses
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