Symptom Tree t023
| 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™ |
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Fan drive belt is broken |
Check the fan drive belt. Replace the belt, if necessary. Refer to Procedure 008-002. |
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Coolant level is below specification |
Inspect the engine and cooling system for external coolant leaks. Repair if necessary. Add coolant. Refer to Procedure 008-018. |
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Charge air cooler fins, radiator fins, or air conditioner condenser fins are damaged or obstructed with debris |
Inspect the charge air cooler, air conditioner condenser, and radiator fins. Clean, if necessary. Refer to Procedures 010-027 and 008-042. |
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Cooling system hose is collapsed, restricted, or leaking |
Inspect the hoses. Refer to Procedure 008-045. |
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Radiator cap is not correct, is malfunctioning, or has low-pressure rating |
Check the radiator pressure cap. Refer to Procedure 008-047. |
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Radiator shutters are not opening completely or the shutterstat setting is wrong |
Inspect the radiator shutters. Repair or replace if necessary. Refer to Procedure 008-049. Check the shutterstat setting. |
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Cold weather radiator cover or winterfront is closed |
Open the cold weather radiator cover or the winterfront. Maintain a minimum of 784 cm2 [122 in2] or approximately 28 x 28 cm [11 x 11 in] of opening at all times. Refer to the OEM service manual. |
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Fill line or vent lines are restricted, obstructed, or not routed correctly |
Check the vent lines and the fill line for correct routing and for restriction. Procedure 008-017 and the OEM specifications |
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Radiator swing check valve is malfunctioning (if equipped) |
Check the swing check valve for correct operation. Refer to the OEM service manual. |
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Fan drive or fan controls are malfunctioning |
Check the fan drive and controls. Refer to Procedure 008-027. |
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Air or combustion gases are entering the cooling system |
Check for air or combustion gases in the cooling system. Refer to Procedure 008-019. |
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Torque converter cooler disc is not installed correctly |
Check the disc for correct installation. Refer to the OEM service manual. |
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Cooling system component is malfunctioning |
Perform the cooling system diagnostics test. Refer to Procedure 008-019. |
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Thermostat is not correct or is malfunctioning |
Check the thermostat for the correct part number and for correct operation. Refer to Procedure 008-013. |
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Water pump is malfunctioning |
Check the water pump for correct operation. Replace the water pump if necessary. Refer to Procedure 008-062. |
