Symptom Tree
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Electronic fault codes active or inactive |
Refer to Procedure 101-007 (Electronic Controlled Fuel System) in Section 1 for fault code troubleshooting. |
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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 008-066 (Coolant Level) in Section 3. |
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Cooling system hose is collapsed, restricted, or leaking |
Inspect the radiator hoses. Refer to a Cummins Authorized Repair Location. |
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Fan drive belt is broken |
Check the fan drive belt. Replace the belt, if necessary. Refer to Procedure 008-002 (Drive Belt, Cooling Fan) in Section A. |
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Radiator cap is not correct, is malfunctioning, or has low-pressure rating |
Check the radiator pressure cap. Refer to the OEM service manual. |
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| Contact a Cummins Authorized Repair Facility |
