Diagnostic Procedure
- CHECK ENGINE COOLANT TEMPERATURE SENSOR
Refer to COMPONENT INSPECTION .
OK or NG
- OK: GO TO 2.
- NG: Replace engine coolant temperature sensor.
- CHECK THERMOSTAT OPERATION
When the engine is cooled [lower than 75°C (167°F)], grasp lower radiator hose and confirm the engine coolant does not flow.
OK or NG
- OK: GO TO 3.
- NG: Repair or replace thermostat. Refer to THERMOSTAT AND THERMOSTAT HOUSING .
- CHECK INTERMITTENT INCIDENT
Perform TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT .
- : INSPECTION END