Thermostat Installation

Install a new gasket to the thermostat.

Install the thermostat.

Install the water outlet with the 3 bolts.

Torque:

19 N*m{194 kgf*cm, 14 ft.*lbf}

Connect the No. 1 radiator hose.

Tighten the radiator drain cock plug by hand.

Tighten the cylinder block drain cock plug.

Torque:

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

Slowly fill the system with engine coolant.

Standard capacity:

8.6 liters (9.0 US qts, 7.6 Imp. qts)

NOTICE:

Do not substitute plain water for engine coolant.

HINT:

1. Use only 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 (coolant with long-life hybrid organic acid technology consists of a combination of low phosphates and organic acids.)
   
2. New Toyota vehicles are filled with Toyota Super Long Life Coolant. When replacing the coolant, Toyota Super Long Life Coolant (color is pink, premixed ethylene glycol concentration is approximately 50% and freezing temperature is -35°C (-31°F)) is recommended
   

Slowly pour coolant into the radiator reservoir until it reaches the Full line.

Install the reservoir cap.

Press the No. 1 and No. 2 radiator hoses several times by hand, and then check the coolant level. If the coolant level is low, add coolant.

Install the radiator cap.

Start the engine and warm it up until the thermostat opens.

HINT:

The thermostat opening timing can be confirmed by pressing the No. 2 radiator hose by hand and checking when the engine coolant starts to flow inside the hose.

Maintain the engine speed at 2000 to 2500 rpm.

NOTICE:

1. Make sure that the radiator reservoir still has some coolant in it.
   
2. Pay attention to the needle of the water temperature meter. Make sure that the needle does not show an abnormally high temperature.
   
3. If there is not enough coolant, the engine may burn out or overheat.
   
4. Immediately after starting the engine, if the radiator reservoir does not have any coolant, perform the following: 1) stop the engine, 2) wait until the coolant has cooled down, and 3) add coolant until the coolant is filled to the F line.
   
5. Run the engine at 2000 rpm until the coolant level has stabilized.
   

Press the No. 1 and No. 2 radiator hoses several times by hand to bleed air.

CAUTION:

1. Wear protective gloves. Heat areas on the parts may injure your hands.
   
2. Be careful as the radiator hoses are hot.
   
3. Keep your hands away from the fan.
   

Stop the engine, and wait until the engine 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 that the coolant level is between the Full and Low lines.
If the coolant level is below the Low line, repeat all of the steps above.
If the coolant level is above the Full line, drain coolant so that the coolant level is between the Full and Low lines.

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

Warm up the engine.

Using a radiator cap tester, increase the pressure inside the radiator to 123 kPa (1.3 kgf/cm², 18 psi), and check that the pressure does not drop.
If the pressure drops, check the hoses, radiator or water pump for leaks. If no external leaks are found, check the heater core, cylinder block, and cylinder head.

Hook the engine under cover to the vehicle body as shown in the illustration.

Install the 4 bolts.

Torque:

29 N*m{296 kgf*cm, 21 ft.*lbf}

Install the front bumper cover lower with the 5 bolts and clip.

Torque:

8.0 N*m{82 kgf*cm, 71 in.*lbf}

Install the upper radiator support seal with the 13 clips.