Symptom Tree
|
Coolant temperature gauge is malfunctioning |
Test the temperature gauge. Repair or replace the gauge if necessary. Refer to the OEM service manual. |
 |
|
Engine is operating at low ambient temperature |
Check the winterfront, shutters, and under-the-hood air. Use under-the-hood intake air in cold weather. Refer to Procedure 101-015 (Operating the Engine) in Section 1. |
|
|
Fan drive or fan controls are malfunctioning |
Check the fan drive and controls. Refer to the OEM service manual or a Cummins Authorized Repair Facility. |
|
|
Thermostat is not correct or is malfunctioning |
Check the thermostat for the correct part number and for correct operation. Refer to a Cummins Authorized Repair Facility. |
|
|
Coolant flow through the radiator is not correct |
Check for correct coolant flow through the radiator. Refer to the OEM service manual. |
|
| Contact a Cummins Authorized Repair Facility |
