New Holland 3899 – ENGINE: Coolant Temp High: Engine temperature exceeded pre-warning level

The engine temperature has exceeded the pre-warning level, indicating a potential issue with the cooling system or engine overheating.

1. 1

   Coolant level

2. 2

   Coolant temperature sensor

3. 3

   Radiator

4. 4

   Thermostat

5. 5

   Cooling fan operation

1. 1

   Check coolant level

   Ensure the coolant level is within the recommended range. Top up if necessary.

2. 2

   Inspect coolant temperature sensor

   Verify the functionality of the coolant temperature sensor. Replace if faulty.

3. 3

   Check radiator and cooling fan

   Ensure the radiator is clean and free of debris. Confirm the cooling fan operates correctly when the engine reaches operating temperature.

4. 4

   Test thermostat

   Check the thermostat for proper operation. Replace if it is stuck closed or not opening at the correct temperature.