Coolant: Service and Repair

REPLACEMENT





1. DRAIN ENGINE COOLANT
a. Remove the radiator cap.

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.

b. Loosen the radiator drain plug (on the right side of the radiator lower tank) and engine drain plug on the engine coolant drain union (on the right front of the cylinder block), and drain the coolant.
c. Close the drain plugs.
Torque: 12.7 Nm (130 kgf-cm, 9 ft. lbs.) for engine
2. FILL ENGINE COOLANT
a. Slowly fill the system with coolant.
- Use of improper coolants may damage the engine cooling system.
- Use "Toyota Long Life Coolant" or equivalent and mix it with plain water according to the manufacture directions.
- Use of the coolant which includes more than 50% [freezing protection down to -35°C (-31°F)] or 60% [freezing protection down to -50°C (-58°F)] of ethylene-glycol is recommended, but not more than 70%.

DO NOT FURTHER DILUTE PRE-MIXED MANUFACTURER APPROVED ETHYLENE GLYCOL BASED COOLANT IF USED.


NOTICE:
- Do not use an alcohol type coolant or plain water alone.
- The coolant should be mixed with plain water (preferably demineralized water or distilled water).

Capacity: 4.9 liters (5.2 US qts, 4.3 Imp qts).

b. Install the radiator cap and start the engine. After repeatedly idling and racing the engine several times for approximately 2 minutes, stop the engine.
c. Remove the radiator cap and fill the radiator with engine coolant until it reaches the rim of the radiator filler. If the engine coolant level of the radiator drops when grasping the radiator inlet hose and outlet hose several times by hand, add more coolant.
d. Install the radiator cap. Activate inspection mode Warm it up until the radiator fan starts to turn with the engine speed at less than 2,500 rpm.

NOTICE: Stop the engine immediately after the radiator fan starts to turn.

e. Stop the engine and cool it down.

NOTICE: Cool down the engine until its temperature becomes below 50°C (122°F).

f. Remove the radiator cap and check the engine coolant level of the radiator. If it has dropped, repeat steps (d) to (g).
g. Bleed air from water pump.
Set the vehicle in the following conditions:
- Ignition switch ON
- Blower speed control dial to LO
- Temperature control dial to MAX. HOT
h. Operate the water pump in the following conditions:
- The engine stopped
- The blower switch ON
- Temperature control dial at MAX. HOT

HINT: Operate the water pump until a sound of the air-containing engine coolant can not be heard from the heater core.

i. When the engine coolant remains full, fill the radiator reservoir tank with engine coolant to the maximum level.
3. CHECK FOR COOLANT LEAKS
4. CHECK ENGINE COOLANT SPECIFIC GRAVITY IS CORRECT