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
–
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
–
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
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