Thermostat Installation

Install a new gasket to the thermostat.

HINT:

When installing the thermostat to the gasket, be careful not to deform the gasket. Make sure that the thermostat is properly installed into the groove of the gasket as shown in the illustration.

Insert the thermostat into the cylinder block with the jiggle valve facing straight upward.

HINT:

The jiggle valve may be set within 10° of either side of the prescribed position.

Install a new gasket and the water inlet with the 2 nuts and bolt.

Torque:

20 N*m{204 kgf*cm, 15 ft.*lbf}

Connect the power steering pump connector.

Connect the radiator hose outlet to the water inlet.

Tighten all the plugs and fill the radiator with TOYOTA Super Long Life Coolant (SLLC).

Torque:

for Cylinder block drain cock plug:

13 N*m{130 kgf*cm, 9 ft.*lbf}

Standard Capacity:

Item	Specified Condition
A/T	8.1 liters (8.6 US qts, 7.1 Imp. qts)
M/T	7.8 liters (8.2 US qts, 6.9 Imp. qts)

NOTICE:

Never use water as a substitute for engine coolant.

HINT:

1. TOYOTA vehicles are filled with TOYOTA SLLC at the factory. In order to avoid damage to the engine cooling system and other technical problems, only use TOYOTA SLLC or similar high quality ethylene glycol based non-silicate, non-amine, non-nitrite, non-borate coolant with long-life hybrid organic acid technology (coolant with long-life hybrid organic acid technology is a combination of low phosphates and organic acids).
   
2. Please contact your TOYOTA dealer for further details.
   

Fill the radiator reservoir with TOYOTA SLLC to the F line.

Press the inlet and outlet radiator hoses several times by hand, and then check the level of the coolant.
If the coolant level drops below the F line, add TOYOTA SLLC to the F line.

Install the radiator cap.

Bleed air from the cooling system.

1. Warm up the engine until the thermostat opens.
   While the thermostat is open, circulate the coolant for several minutes.
   

2. Maintain the engine speed at 2500 to 3000 rpm.
   

3. Press the inlet and outlet radiator hoses several times by hand to bleed air.
   

   CAUTION:

   When pressing the radiator hoses:

   1. Wear protective gloves.
      
   2. Be careful as the radiator hoses are hot.
      
   3. Keep your hands away from the radiator fan.
      

Stop the engine and wait until the coolant cools down to ambient temperature.

CAUTION:

Do not remove the radiator cap while the engine and radiator are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.

Check the coolant level in the radiator reservoir.
If the coolant level is below the L line, add SLLC up to the reservoir F line.

Fill the radiator with coolant and attach a radiator cap tester.

Warm up the engine.

Using a radiator cap tester, increase the pressure inside the radiator to 118 kPa (1.2 kgf/cm², 17 psi), and check that the pressure does not drop.
If the pressure drops, check the hoses, radiator and water pump for leaks. If no external leaks are found, check the cylinder block and cylinder head.