13. Cooling System
13-3
Troubleshooting
The engine temperature is too high
z The water thermometer and the temperature sensor do not work properly.
z The thermostat is stuck to closed.
z Insufficient coolant.
z The water hose and jacket are clogged.
z Fan motor malfunction.
z The filler cap of the radiator malfunction.
The engine temperature is too low
z The water thermometer and the temperature sensor malfunction.
z The thermostat is stuck to open.
Coolant is leaking
z The water pump mechanical seal does not function properly.
z The O ring is deteriorated.
z The water hose is broken or aged.
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