2008 TOYOTA 4RUNNER spark plugs

337
INFORMATION BEFORE DRIVING YOUR
TOYOTA
Off−road vehicle precautions338
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Break−in period 339
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . .
Fuel 339
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . . . . . . . . . . .
Fuel pump shut off system 341
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation in foreign countries 341
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Three−way catalytic converters 342
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine exhaust cautions 343
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
Facts about engine oil consumption 344
. . . . . . . . . . . . . . . . . . . . . . . . . .
Iridium−tipped spark plugs 345
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake system 345
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . .
Brake pad wear limit indicators 349
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Limited−slip differential 349
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. .
Your Toyota’s identification 349
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Theft prevention labels 351
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. .
Suspension and chassis 351
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
Tire information 352
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . .
Vehicle load limits 364
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . .
Cargo and luggage 365
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . .
Types of tires 368
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . . .
SECTION 2

345
CY20008a
Your engine is fitted with iridium−tipped
spark plugs.
NOTICE
Use only iridium−tipped spark plugs.
Do not adjust gaps for engine perfor-
mance or smooth driveability.
This brake system has 2 independent hy-
draulic circuits. If either circuit should fail,
the other will still work. However, the ped-
al will be harder to press, and your stop-
ping distance will increase. Also, the
brake system warning light may come on.
CAUTION
Do not drive your vehicle with only a
single brake system. Have your
brakes fixed immediately.
BRAKE BOOSTER
The brake booster uses brake fluid pres-
surized by the pump to power−assist the
brakes. If the brake booster fails during
driving, the brake system warning light
comes on and buzzer sounds continuous-
ly. In this case, the brakes may not work
properly. If they do not work well, depress
the brake pedal firmly. If the brake system
warning light comes on, immediately stop
your vehicle and contact your Toyota deal-
er.
It is not a malfunction that the brake sys-
tem warning light may stay on for 60 sec-
onds after the engine switch is turned to
the ON" position.Depressing the brake pedal repeatedly
may turn on the brake system warning
light and buzzer. It is normal if the light
turns off and the buzzer stops sounding
after a few seconds.
You may hear a small sound in the engine
compartment after the engine is started or
the brake pedal is depressed repeatedly.
This is a pump pulsating sound of the
brake system, and it is not a malfunction.
CAUTION
Do not pump the brake pedal if the
engine stalls. Each push on the
pedal uses up your brake fluid
pressure reserve.
Even if the power assist is com-
pletely lost, the brakes will still
work. But you will have to push the
pedal hard, much harder than nor-
mal. And your braking distance will
increase.
Iridium−tipped spark plugs
(4.7 L V8 [2UZ−FE] engine)
Brake system

391
To avoid serious personal injury and
damage to your vehicle which might re-
sult from battery explosion, acid burns,
electrical burns, or damaged electronic
components, these instructions must be
followed precisely.
If you are unsure about how to follow this
procedure, we strongly recommend that
you seek the help of a competent me-
chanic or towing service.
CAUTION
Batteries contain sulfuric acid
which is poisonous and corrosive.
Wear protective safety glasses when
jump starting, and avoid spilling
acid on your skin, clothing, or ve-
hicle.
If you should accidentally get acid
on yourself or in your eyes, remove
any contaminated clothing and flush
the affected area with water imme-
diately. Then get immediate medical
attention. If possible, continue to
apply water with a sponge or cloth
while en route to the medical office.
The gas normally produced by a
battery will explode if a flame or
spark is brought near. Use only
standardized jumper cables and do
not smoke or light a match while
jump starting.
NOTICE
The battery used for boosting must
be 12 V. Do not jump start unless you
are sure that the booster battery is
correct.
JUMP STARTING PROCEDURE1. If the booster battery is installed in another vehicle, make sure the vehicles
are not touching. Turn off all unneces-
sary lights and accessories.
When boosting, use the battery of
matching or higher quality. Any other
battery may be difficult to jump start
with.
If jump starting is difficult, charge the
battery for several minutes.
2. If required, remove all the vent plugs from the booster and discharged batter-
ies. Lay a cloth over the open vents
on the batteries. (This helps reduce the
explosion hazard, personal injuries and
burns.)
3. If the engine in the vehicle with the booster battery is not running, start it
and let it run for a few minutes. During
jump starting run the engine at about
2000 rpm with the accelerator pedal
lightly depressed.
(c) Jump starting

431
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
compartmentthe 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 leave anything that may
burn easily, such as paper or rags,
in the engine compartment.
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 non−silicate,
non−amine, non−nitrite, and non−bo-
rate coolant with long−life hybrid
organic acid technology to fill the
radiator. Toyota Super Long Life
Coolant" is a mixture of 50% cool-
ant and 50% deionized water (for
the U.S.A.) or 55% coolant and 45%
deionized water (for Canada).
 If you spill some of the coolant, be
sure to wash it off with water to
prevent it from damaging the parts
or paint.
 Do not allow dirt or anything else
to fall through the spark plug holes.
 Do not pry the outer electrode of a
spark plug against the center elec-
trode.

432
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 iridium−tipped spark
plugs by cleaning or regapping.
 Do not overfill automatic transmis-
sion fluid, or the transmission
could be damaged.
 Do not drive with the air cleaner
filter removed, or excessive engine
wear could result. Also backfiring
could cause a fire in the engine
compartment.
 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 do−it−yourself 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 437 in Section 7−2 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 Super Long Life Coolant" or
similar high quality ethylene glycol
based non−silicate, non−amine, non−ni-
trite, and non−borate coolant with long−
life hybrid organic acid technology.
Toyota Super Long Life Coolant" is a
mixture of 50% coolant and 50% deion-
ized water (for the U.S.A.) or 55%
coolant and 45% deionized water (for
Canada). 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

480 O
Odometer148
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Off−road driving precautions 374
. . . . . . . . . .
Off−road vehicle precautions 338
. . . . . . . . . .
Oil
Consumption 344
. . . . . . . . . . . . . . . . . . . . . .
Power steering 440
. . . . . . . . . . . . . . . . . . . . .
Viscosity and grade 436
. . . . . . . . . . . . . . . .
Oil consumption 344
. . . . . . . . . . . . . . . . . . . . .
Open door warning light 149
. . . . . . . . . . . . . . .
Operation in foreign countries 341
. . . . . . . . .
Outside temperature display 305
. . . . . . . . . . .
Overheating, Engine 394
. . . . . . . . . . . . . . . . . .
Overheating, Engine coolant 146
. . . . . . . . . .
Overview
Engine compartment 428
. . . . . . . . . . . . . . .
P
Parking brake
Operation 202 . . . . . . . . . . . . . . . . . . . . . . . . .
Reminder buzzer 202 . . . . . . . . . . . . . . . . . . .
Reminder light 202 . . . . . . . . . . . . . . . . . . . . .
Polishing 415 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power back window 30 . . . . . . . . . . . . . . . . . . .
Power outlet 315,316 . . . . . . . . . . . . . . . . . . . . .
Power rear view mirror control 122 . . . . . . . . .
Power steering
Fluid level 440 . . . . . . . . . . . . . . . . . . . . . . . . .
Power window switches 27 . . . . . . . . . . . . . . . .
Preloaders
(seat belt pretensioners) 71 . . . . . . . . . . . . .
Pretensioners
(seat belt pretensioners) 71
. . . . . . . . . . . . . Protecting your Toyota from
corrosion 414
. . . . . . . . . . . . . . . . . . . . . . . . . .
R
Radiator
Checking the radiator 439 . . . . . . . . . . . . . . .
Coolant, Engine 438 . . . . . . . . . . . . . . . . . . . .
Radio 208 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rain clearing mirrors 419 . . . . . . . . . . . . . . . . .
Rear audio/video system
Rear seat entertainment system 240 . . . . .
Rear console box 324 . . . . . . . . . . . . . . . . . . . .
Rear cup holder 330 . . . . . . . . . . . . . . . . . . . . . .
Rear cup holders and tray 328 . . . . . . . . . . . . .
Rear height control air
suspension 191 . . . . . . . . . . . . . . . . . . . . . . . .
Rear seat precautions 52 . . . . . . . . . . . . . . . . .
Rear seats 50,52,53 . . . . . . . . . . . . . . . . . . . . . .
Rear side−view mirrors 125 . . . . . . . . . . . . . . .
Rear vents 299 . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear view mirror
Anti−glare inside 123 . . . . . . . . . . . . . . . . . . .
Rear view mirror, auto anti−glare inside 124 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear view mirrors
Folding 123 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outside 121 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power 122 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear view monitor system 312 . . . . . . . . . . . . .
Reporting safety defects for U.S. owners 472 . . . . . . . . . . . . . . . . . . . . . . .
Roll sensing of curtain shield airbags off switch 95 . . . . . . . . . . . . . . . . . . .
Roof luggage carrier 334 . . . . . . . . . . . . . . . . . . Running board light 140
. . . . . . . . . . . . . . . . . . .
S
Satellite radio controller 208
. . . . . . . . . . . . . . .
Seat adjustment precautions
Front seats 43
. . . . . . . . . . . . . . . . . . . . . . . . .
Seat belt extender 69
. . . . . . . . . . . . . . . . . . . . .
Seat belts
Cleaning 417
. . . . . . . . . . . . . . . . . . . . . . . . . .
Fastening 64
. . . . . . . . . . . . . . . . . . . . . . . . . .
Seat belt precautions 64
. . . . . . . . . . . . . . . .
Seat belt pretensioners 71
. . . . . . . . . . . . . .
Seat heater switches 63
. . . . . . . . . . . . . . . . . .
Seating capacity 364
. . . . . . . . . . . . . . . . . . . . .
Seats 42
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service and maintenance 422
. . . . . . . . . . . . .
Service reminder indicator 149
. . . . . . . . . . . .
Side door locks 22
. . . . . . . . . . . . . . . . . . . . . . .
Side door locks
Automatic locking and unlocking functions 25
. . . . . . . . . . . . . . . .
Side doors 22
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Side doors
Automatic locking and unlocking functions 25
. . . . . . . . . . . . . . . .
Side vents 299
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Spare fuse 452
. . . . . . . . . . . . . . . . . . . . . . . . . .
Spare tire 396
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Spark plugs
Iridium−tipped spark plugs 345
. . . . . . . . . .
Specifications 462
. . . . . . . . . . . . . . . . . . . . . . .
SRS driver airbag and
front passenger airbag 74
. . . . . . . . . . . . . . .