Symptom Tree
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Engine will notrestart |
Refer to the Engine Difficult to Start or Will Not Startsymptom tree. |
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Fuel level is low in the tank |
Fill the supply tank. Refer to the OEM service manual. |
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Electronic fault codes are active |
For instructions on how to read active fault codes, refer to Diagnostic Fault Codes in Section 1. If fault codes are active, contact a Cummins Authorized Repair Facility. |
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Idle shutdown or PTO shutdown features are activated |
Check the time limit on idle and PTO shutdowns with an electronic service tool. Refer to the Electronically Controlled Fuel System in Section 1. |
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OEM engine protection system is malfunctioning |
Isolate the OEM engine protection system. Follow the OEM service manuals to check for a malfunction. |
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Battery voltage supply to the electronic control module (ECM) is low, interrupted, or open |
Check the battery connections, the fuses, and the unswitched battery supply circuit. Refer to the OEM service manual. |
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Moisture in the wiring harness connectors |
Dry the connectors with Cummins electronic cleaner, Part Number 3824510. |
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Air in the fuel system |
Check for air in the fuel system. Tighten or replace the fuel connections, fuel lines, fuel tank standpipe, and fuel filters as necessary. |
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Fuel supply line restriction between the fuel pump and the injectors |
Check the fuel supply line from the fuel pump to the cylinder head for sharp bends that can cause restrictions. Refer to a Cummins Authorized Repair Facility. |
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| Contact a Cummins Authorized Repair Facility |
