2006 TOYOTA 4RUNNER service

’06 4Runner_U (L/O 0508)
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Spare
fuses
If you perform maintenance by yourself,
be sure to follow the correct procedure
given in this Section.
You should be aware that improper or in-
complete servicing may result in operating
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 Section gives instructions only for
those items that are relatively easy for an
owner to perform. As explained in Section
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 “Parts and
tools” on page 416 in this Section.
Utmost care should be taken when work-
ing on your vehicle to prevent accidental
injury. Here are a few precautions that
you should be especially careful to ob-
serve:
Fuse locations Doityourself service
precautions

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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 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 nonsilicate,
nonamine, nonnitrite, and nonbo-
rate coolant with longlife 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.

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Low level Full level
Add oil O.K. Too full
4.0 L V6 (1GRFE) engine
Low level Full level
Add oil O.K. Too full
4.7 L V8 (2UZFE) engine
With the engine at operating tempera-
ture and turned off, check the oil level
on the dipstick. 1. To get a correct reading, the vehicle should be on level ground. After turning
off the engine, wait a few minutes for
the oil to drain back into the bottom of
the engine.
2. Pull the dipstick out, hold a rag under the end and wipe it clean.
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 while holding a rag under the
end.
CAUTION
Be careful not to touch the hot ex-
haust manifold.
NOTICE
Be careful not to drop engine oil on
the vehicle components.
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. We recommend that you use
a funnel when adding oil.
The approximate quantity of oil needed to
raise the level between low and full on the
dipstick is indicated as follows:1.5L(1.6qt.,1.3Imp.qt.)
For the engine oil capacity, see “Service
specifications” on page 447 in Section 8.
When the level reaches within the correct
range, install the filler cap hand− tight.
NOTICE
Be careful not to spill engine oil on
the vehicle components.
 Avoid overfilling, or the engine
could be damaged.
 Check the oil level on the dipstick
once again after adding the oil.
Checking the engine oil level

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SPECIFICATIONS
Specifications
Dimensions and weights 446
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Engine 447
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Fuel 447
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Service specifications 447
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Tires 451
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Fuses 452
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SECTION 8

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447
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 (284.5) Fuel type:
Unleaded gasoline, Octane Rating 87
(Research Octane Number 91) or higher.
For improved vehicle performance, use
premium unleaded gasoline with an Oc-
tane Rating of 91 (Research Octane
Number 96) or higher.
Fuel tank capacity, L (gal., Imp. gal.): 87 (23.0, 19.1) ENGINE
Valve clearance (engine cold), mm (in.):
4.0 L V6 (1GR −FE) engine
Intake 0.15—0.25 (0.006—0.010)
Exhaust 0.29—0.39 (0.011—0.015)
4.7 L V8 (2UZ −FE) engine
Intake 0.15—0.25 (0.006—0.010)
Exhaust 0.25—0.35 (0.010—0.014)
Spark plug type: 4.0 L V6 (1GR −FE) engine
DENSO K20HR −U11
NGK LFR6C11
4.7 L V8 (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.): 4.0 L V6 (1GR −FE) engine
With filter 5.2 (5.5, 4.6)
Without filter 4.9 (5.2, 4.3)
4.7 L V8 (2UZ −FE) engine
With filter 6.2 (6.5, 5.5)
Without filter 5.7 (6.0, 5.0)
Engine FuelService specifications

’06 4Runner_U (L/O 0508)
I
Publication No. OM35852U
Part No. 01999-35852
Printed in Japan 01−0508 −00
4
Quick index
 If a service reminder indicator or warning buzzer comes on 147 . . . . . . . .
 If your vehicle will not start 374 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. .
 If your engine stalls while driving 377 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 If your vehicle overheats 378 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . .
 If you have a flat tire 379 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . .
 If your vehicle needs to be towed 389 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 Tips for driving during break −in period 329 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 How to start the engine 356 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . .
 General maintenance 407 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . .
Gas station information
Fuel type:
UNLEADED gasoline, Octane Rating 87 (Research Octane Number 91) or
higher.
For improved vehicle performance, use premium unleaded gasoline with an
Octane Rating of 91 (Research Octane Number 96) or higher.
See page 329 for detailed information.
Fuel tank capacity:
87 L (23.0 gal., 19.1 Imp. gal.)
Engine oil:
ILSAC multigrade engine oil is recommended.
See page 421 for detailed information.
Tire information: See pages 425 through 432.
Tire inflation pressure: See page 451.
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