Symptom Tree t024
Cause | Correction |
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Electronic fault codes active or high counts of inactive fault codes |
Refer to Section TF in the Troubleshooting and Repair Manual for CELECT™ |
Engine is operating at low ambient temperature |
Check the shutters and engine compartment air. Refer to the OEM service manual. |
Coolant temperature gauge is malfunctioning |
Test the temperature gauge. Repair or replace the gauge, if necessary. Refer to the OEM service manual. |
Coolant temperature sensor is malfunctioning |
Use an electronic service tool to check the coolant temperature sensor. Refer to Procedure 008-026, 008-027, or 008-028 and the OEM service manual. |
Radiator shutters are stuck open or opening early |
Check the shutter operation. Repair or replace the shutters if necessary. Refer to Procedure 008-049. |
Radiator swing check valve is malfunctioning (if equipped) |
Check the swing check valve for correct operation. Refer to the OEM service manual. |
Fan drive or fan controls are malfunctioning |
Check the fan drive and controls. Refer to Procedure 008-026. |
Thermostat is not correct or is malfunctioning |
Check the thermostat for the correct part number and for correct operation. Refer to Procedure 008-013. |
Thermostat seal is damaged, missing, or not installed correctly. |
Check the thermostat seal for damage and correct installation. Refer to Procedure 008-016. |
Coolant flow through the radiator is not correct |
Check for correct coolant flow through the radiator. Refer to Procedure 008-042. |