Toyota Corolla (E120) 2002–2008 Repair Manual / Cooling / Coolant
Toyota Corolla (E120): Coolant
Replacement
1. Drain coolant

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.
- remove the radiator cap.
- loosen the radiator and engine drain plugs, and drain the coolant.
- close the drain plugs.
Torque: 13 nvm (130 Kgf·cm, 9 ft·lbf) for engine
2. Add coolant
- Slowly fill the system with coolant.
Hint
:
- use of improper coolants may damage engine cooling system.
- Use ”toyota long life coolant” or equivalent and mix it with plain water according to the manufacturer’s directions.
- Using of coolant with 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 %.
Notice
:
- do not use an alcohol type coolant or plain water alone.
- The coolant should be mixed with plain water (preferably
demineralized water).
Capacity: 6.5 Liters (6.9 Us qts, 5.7 Lmp. Qts)
3. Check engine coolant leak
- fill the radiator with coolant and attach a radiator cap tester.
- pump it to 118 kpa and check leakage.
Other materials:
Exhaust gas precautions
Harmful substance to the
human body is included in
exhaust gases if inhaled.
WARNING
Exhaust gases include harmful
carbon monoxide (CO), which is
colorless and odorless. Observe
the following precautions.
Failure to do so may cause
exhaust gases enter the vehicle
and may lead to an accident
caused ...
Oxygen / af sensor heater monitor
Preconditions
The monitor will not run unless:
mil is off
drive pattern
connect the obd ii scan tool to the dlc3 to check monitor status
and preconditions.
Start the engine and allow it to idle for 9 minutes.
Drive the vehicle at 25 mph (40 km ...
Circuit description
The variable valve timing (vvt) system includes the ecm, the oil control
valve (ocv) and the vvt controller.
The ecm sends a target ”duty–cycle” control signal to the ocv. This control
signal, applied to the ocv,
regulates the oil pressure supplied to the vvt controller. Camshaft timin ...


