2009 TOYOTA TUNDRA radiator cap

476
4-3. Do-it-yourself maintenance
Engine compar tment
4.0 L V6 (1GR-FE) engine
Washer fluid tank (P. 492)
Engine oil level dipstick ( P. 479)
Engine coolant reservoir ( P. 484)
Engine oil filler cap ( P. 480)Brake fluid reservoir
( P. 486)
Fuse box ( P. 512)
Battery ( P. 489)
Radiator ( P. 486)
Condenser ( P. 486)
Power steering fluid reservoir ( P. 488)

477
4-3. Do-it-yourself maintenance
4
Maintenance and care
4.7 L V8 (2UZ-FE) engine
Washer fluid tank (
P. 492)
Engine oil level dipstick ( P. 479)
Engine coolant reservoir ( P. 484)
Engine oil filler cap ( P. 480)Brake fluid reservoir
( P. 486)
Fuse box ( P. 512)
Battery ( P. 489)
Radiator ( P. 486)
Condenser ( P. 486)
Power steering fluid reservoir ( P. 488)

478 4-3. Do-it-yourself maintenance
5.7 L V8 (3UR-FE, 3UR-FBE) engine
Washer fluid tank (P. 492)
Engine oil level dipstick ( P. 479)
Engine coolant reservoir ( P. 484)
Engine oil filler cap ( P. 481)Brake fluid reservoir
( P. 486)
Fuse box ( P. 512)
Battery ( P. 489)
Radiator ( P. 486)
Condenser ( P. 486)
Power steering fluid reservoir ( P. 488)

484 4-3. Do-it-yourself maintenance
Engine coolantThe coolant level is satisfactory if it is between the FULL and LOW
lines on the reservoir when the engine is cold. Reservoir cap
FULL
LOW
If the level is on or below the
LOW line, add coolant up to the
FULL line.
NOTICE
■To prevent serious engine damage
Check the oil level on a regular basis.
■ When replacing the engine oil
●Be careful not to spill engine oil on the vehicle components.
● Avoid overfilling, as the engine could be damaged.
● Check the oil level on the dipstick every time you refill the vehicle.
● Be sure the engine oil filler cap is properly tightened.
■If the coolant level drops within a short time after replenishing
Visually check the radiator, hoses, reservoir cap, radiator cap, drain cock
and water pump.
If you cannot find a leak, have your Toyota dealer pressure test the cap and
check for leaks in the cooling system.

485
4-3. Do-it-yourself maintenance
4
Maintenance and care
■
Coolant selection
Only use “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.
U.S.A.: “Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deionized water. (Enabled: -31 F [-35 C])
Canada: “Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deionized water. (Enabled: -44 F [-42 C])
For more details about engine coolant, contact your Toyota dealer.
CAUTION
■ When the engine is hot
Do not remove the radiator cap.
The cooling system may be under pressure and may spray hot coolant if the
cap is removed, causing burns or other injuries.
NOTICE
■When adding engine coolant
Coolant is neither plain water nor stra ight antifreeze. The correct mixture of
water and antifreeze must be used to provide proper lubrication, corrosion
protection and cooling. Be sure to read the antifreeze or coolant label.
■ If you spill coolant
Be sure to wash it off with water to prevent damage to parts or paint.

5
When trouble arises
587
5-2. Steps to take in an emergency
■
Overheating
If you observe the following, your vehicle may be overheating.
●The engine coolant temperature gauge enters the red zone or a loss of
power is experienced.
● Steam is coming from under the hood.
● “ENGINE COOLANT HOT” is shown on the multi-information display
(vehicles with multi-information display).
CAUTION
■To prevent an accident or injury when inspecting under the hood of
your vehicle
●If steam is seen coming from under the hood, do not open the hood until
the steam has subsided. The engine compartment may be very hot, caus-
ing serious injury such as burns.
● Keep hands and clothing away from the fan and other belts while the
engine is running.
● Do not loosen the radiator cap while the engine and radiator are hot.
Serious injury, such as burns, may result from hot coolant and steam
released under pressure.
NOTICE
■When adding engine coolant
Wait until the engine has cooled down before adding engine coolant.
When adding coolant, do so slowly. Adding cool coolant to a hot engine too
quickly can cause damage to the engine.