Toyota Sequoia (2005). Manual - part 707

CO0IO–07

–

COOLING

COOLANT

CO–1

2817

COOLANT

INSPECTION

HINT:
Check the coolant level when the engine is cold.
1.

CHECK ENGINE COOLANT LEVEL AT RADIATOR RESERVOIR

The engine coolant level should be between the ”LOW” and ”FULL” lines at normal temperature
(20

°

C(68

°

F)).

If low, check for leaks and add ”Toyota Super Long Life Coolant” or similar high quality ethylene glycol based
non–silicate, non–amine, non–nitrite, and non–borate coolant with long–life hybrid organic acid technology
up to the ”FULL” line.
2.

CHECK ENGINE COOLANT QUALITY

(a)

Remove the radiator cap.

CAUTION:
To avoid the danger of being burned, do not remove the radiator cap while the engine and radiator
are still hot, as fluid and steam can be blown out under pressure.
(b)

There should not be any excessive deposits of rust or scale around the radiator cap or radiator filler
hole, and the coolant should be free from oil.

If excessively dirty, clean the coolant passages and replace the coolant.
(c)

Reinstall the radiator cap.

CO0IP–12

B05864

Drain Plug

Drain Plug

Drain Plug

CO–2

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COOLING

COOLANT

2818

REPLACEMENT

CAUTION:
To avoid the danger of being burned, do not remove the ra-
diator cap while the engine and radiator are still hot, as fluid
and steam can be blown out under pressure.
1.

REMOVE ENGINE UNDER COVER

2.

DRAIN ENGINE COOLANT

(a)

Remove the radiator cap.

(b)

Remove the 3 drain plugs on the engine and radiator, and
drain the coolant.

(c)

Close the 3 drain plugs.
Torque: 12.7 N·m (130 kgf·cm, 9 ft·lbf) for engine

3.

REFILL WITH ENGINE COOLANT

(a)

Slowly fill the system with coolant.
Capacity: 11.6 liters (12.3 US qts, 10.2 Imp. qts)

NOTICE:
Do not use plain water alone.
HINT:

Use of improper coolants may damage the engine cooling
system.

Use ”Toyota Super Long Life Coolant” or similar high qual-
ity ethylene glycol based non–silicate, non–amine, non–
nitrite, and non–borate coolant with long–life hybrid or-
ganic acid technology.

New Toyota vehicles are filled with Toyota Super Long
Life Coolant (color is pink, premixed ethylene glycol con-
centration is approximately 50 %  and freezing tempera-
ture is –35

°

C (–31

°

F)). When replacing the coolant, Toyo-

ta Super long Life Coolant is recommended.

Observe the coolant level inside the radiator by pressing
the inlet and outlet radiator hoses several times by hand.
if the coolant level goes down, add the coolant.

(b)

Install the radiator cap.

(c)

Bleed the cooling system.
(1)

Start the engine, and open the heater water valve.

(2)

Maintain the engine speed at 2,000 – 2,500 rpm,
and warm up the engine.

(d)

Stop the engine, and wait until the engine coolant cools
down.

(e)

Refill coolant into the reservoir until it is ”FULL”.

4.

CHECK FOR ENGINE COOLANT LEAKS

5.

CHECK ENGINE COOLANT SPECIFIC GRAVITY COR-
RECTLY

6.

REINSTALL ENGINE UNDER COVER

CO0IQ–10

D12721

Intake Air 
Connector

PS Air
Hose

No.2 Fan Shroud

Throttle Body Cover

Fan Pulley

Drive Belt

Fan with Fluid Coupling

A/C Compressor

A/C Compressor
Connector

Engine Under Cover (4WD)

x 5

Radiator Assembly

N·m (kgf·cm, ft·lbf) : Specified torque

12 (120, 9)

49 (500, 36)

A/T Oil Cooler Hose

Clip

Clip

Engine Under Cover (2WD)

Vacuum Hose

PCV Hose

Suction Hose

MAF Meter Wire

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COOLING

WATER PUMP

CO–3

2819

WATER PUMP

COMPONENTS

B17476

RH No.3 Timing Belt Cover

LH No.3 Timing Belt Cover

No.2 Timing Belt Cover

Camshaft Position
Sensor Connector

Engine Wire

Oil Cooler Pipe

Timing Belt

Fan Bracket

Drive Belt Timing Pulley

Timing Belt Tensioner

Dust Boot

N·m (kgf·cm, ft·lbf) : Specified torque

Cover Plate

39 (400,29)

32 (330, 24)

16 (160, 12)

Water Bypass
Hose

Grommet

16 (160, 12)

245 (2,500, 181)

CO–4

–

COOLING

WATER PUMP

2820