Thermostat: Service and Repair

REMOVAL AND INSTALLATION

Removal Service Point
[A] Radiator Upper Hose <2.0L Engine (Non-turbo)> Or Radiator Lower Hose <2.0L Engine (Turbo) and 2.4L Engine> Disconnection





Place a mating mark on the radiator hose and the hose clamp. Then, disconnect the radiator hose

Installation Service Points
]A[ Thermostat Installation





Install the thermostat so that the jiggle valve is facing straight up and is aligned with the mark on the thermostat case as shown in the illustration

CAUTION: Make absolutely sure that no oil is adhering to the rubber ring of the thermostat. In addition, be careful not to fold over or scratch the rubber ring when inserting.

]B[ Radiator Upper Hose <2.0L Engine (Non-Turbo)> Or Radiator Lower Hose <2.0L Engine (Turbo) and 2.4L Engine> Connection





1. Insert each hose as far as the projection of the water outlet fitting or water inlet fitting
2. Align the mating marks on the radiator hose and hose clamp, and then connect the radiator hose.

INSPECTION

Thermostat Check





- Check that the valve closes tightly at room temperature.
- Check for defects or damage.
- Check for rust or other contamination on the valve, and remove if necessary.
- Immerse thermostat in container of hot water. Stir to raise water temperature and check that the thermostat valve opening temperature and the water temperature with valve fully open valve lift: 8 mm (0.31 inch)] are at the standard value.





Standard value:
Valve opening temperature:
<2.0L Engine (Non-turbo)> 90.5°C (195°F)
<2.0L Engine (Turbo) and 2.4L Engine> 82°C (180°F)
Full-opening temperature:
<2.0L Engine (Non-turbo)> 102°C (216°F)
<2.0L Engine (Turbo) and 2.4L Engine> 95°C (203°F)

NOTE: Measure valve height when fully closed. Calculate lift by measuring the height when fully open. Replace the thermostat if it does not open properly, or does not have the correct valve lift.