Toyota Tundra. Manual — part 1701

Fig. 38: Identifying Radiator Components With Torque Specifications (1 Of 2)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2009 Toyota Tundra

2009 ENGINE Cooling (3UR-FE) - Tundra

Fig. 39: 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

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

2009 Toyota Tundra

2009 ENGINE Cooling (3UR-FE) - Tundra

a

Measure the valve opening pressure

Fig. 40: Checking Radiator Cap Operation
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

1

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

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. 41: Measuring Valve Opening Pressure
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Standard judgment criterion

blown out under pressure.

2009 Toyota Tundra

2009 ENGINE Cooling (3UR-FE) - Tundra

RADIATOR CAP SUB-ASSEMBLY SPECIFIED CONDITION

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

2

INSPECT FINS FOR BLOCKAGE

a

Check that the radiator and condenser are not blocked with leaves, dirt, or insects Clean the hose
connections

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 REPLACEMENT )

2

DRAIN ENGINE COOLANT (see REPLACEMENT )

3

REMOVE FRONT BUMPER COVER ASSEMBLY (w/ Trailer Towing System)

a

for Steel Type Bumper:

Remove the front bumper (see REMOVAL )

Item

Specified Condition

Standard value (for brand-new cap)

93 to 123 kPa (1 0 to 1 3 kgf/cm

2

, 13 5 to 17 8

psi)

Minimum standard value (after using
cap)

78 5 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

FINS FOR BLOCKAGE



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



Never apply water directly onto the electric components.

Injection

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 (3UR-FE) - Tundra