Toyota Tundra. Manual — part 1671

Fig. 37: Identifying Radiator Components With Torque Specifications (2 Of 2)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

ON-VEHICLE INSPECTION

1. INSPECT RADIATOR CAP SUB-ASSEMBLY

2009 Toyota Tundra

2009 ENGINE Cooling (1GR-FE) - Tundra

a. Measure the valve opening pressure.

1. If there are water stains or foreign matter on rubber packing 1, 2 or 3, clean it by using water

and finger scouring.

Fig. 38: Inspecting Radiator Cap Operation
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2. Check that rubber packing 1, 2 and 3 are not deformed, cracked or swollen.

3. Check that rubber packing 3 and 4 are not stuck together.

4. Apply engine coolant to rubber packing 2 and 3.

5. Prepare a radiator cap tester, and tilt it more than 30°.

6. Pump the cap tester several times, and check the maximum pressure*.

Pumping speed: 1 pump per second

HINT:

*: Even if the cap cannot maintain the maximum pressure, it is not a defect.

Fig. 39: Tilting Radiator Cap Tester More Than 30°
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Standard judgment criterion

RADIATOR CAP TEST SPECIFIED CONDITION

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.

2009 Toyota Tundra

2009 ENGINE Cooling (1GR-FE) - Tundra

If the maximum pressure is less than the minimum standard valve, replace the radiator cap
sub-assembly.

2. INSPECT FINS FOR BLOCKAGE

a. Check that the fins of the radiator core are not blocked with leaves, dirt, or insects.

If the fins are blocked, wash them with water or a steam cleaner.

b. Dry the fins with compressed air.

REMOVAL

1. REMOVE NO. 1 ENGINE UNDER COVER (See REMOVAL )

2. DRAIN ENGINE COOLANT (see REPLACEMENT )

3. REMOVE V-BANK COVER (See REMOVAL )

4. DISCONNECT RADIATOR HOSE INLET

5. DISCONNECT RADIATOR HOSE OUTLET

6. REMOVE FAN SHROUD

a. Loosen the 4 nuts holding the fluid coupling fan.

Item

Specified Condition

Standard valve (for brand-new cap)

93 to 122 kPa (1.0 to 1.3 kgf/cm

2

, 13.5 to 18 psi)

Minimum standard valve (after using cap) 79 kPa (0.8 kgf/cm

2

, 11.4 psi)

NOTE:



If the distance between the steam cleaner and core is too close,
the fins may be damaged.



Keep the following injection distance. Standard injection
distance

RADIATOR CAP TEST SPECIFIED CONDITION



If the fins are bent, straighten them with a screwdriver or pliers.



Never apply water directly onto the electric components.

Specified

Condition

Injection Pressure

300 mm (11.8 in.) 2942 to 4903 kPa (30.0 to 50.0 kgf/cm

2

, 427

to 711 psi)

500 mm (19.7 in.) 4903 to 7845 kPa (50.0 to 80.0 kgf/cm

2

, 711

to 1138 psi)

2009 Toyota Tundra

2009 ENGINE Cooling (1GR-FE) - Tundra

Fig. 40: Identifying Fluid Coupling Fan Nuts
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b. Remove the fan and generator V-belt (See REMOVAL ).

c. Disconnect the reservoir hose from the radiator tank upper.

d. Remove the 2 bolts holding the fan shroud.

e. Remove the 4 nuts of the fluid coupling fan, and then remove the shroud together with the coupling

fan.

Fig. 41: Identifying Fan Shroud Bolts
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

f. Remove the fan pulley from the water pump.

7. REMOVE RADIATOR SIDE DEFLECTOR RH

a. Using a clip remover, remove the 6 clips and side deflector.

NOTE:

Be careful not to damage the radiator core.

2009 Toyota Tundra

2009 ENGINE Cooling (1GR-FE) - Tundra