Symptom Tree t064
| Cause | Correction |
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Electronic fault codes active or high counts of inactive fault codes |
Refer to Section TF in the Troublshooting and Repair Manual CELECT™ Plus Systems, Bulletin 3666130, or Section TF in the Troubleshooting and Repair Manual for the CELECT™ Systems, Bulletin 3666084. |
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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 Procedure 013-009 or Procedures 019-198 and 019-087 in the Troublshooting and Repair Manual for CELECT™ Plus Systems, Bulletin 3666130, or the Troubleshooting and Repair Manual for CELECT™ Systems, Bulletin 3666084. |
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Engine will not restart |
Perform a manual start. If engine will not start, refer to the Engine Difficult to Start or Will Not Start symptom tree. |
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Fuel inlet restriction |
Check for fuel inlet restriction. Refer to Procedure 006-020. |
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Air in the fuel system |
Check for air in the fuel system. Refer to Procedure 006-003. |
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Engine idle speed is set too low (mechanical fuel systems) |
Adjust the fuel pump idle speed. Refer to Procedure 005-029. |
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Air intake system restriction |
Check the air intake system for restriction. Refer to Procedure 010-031. |
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Exhaust system restriction |
Check the exhaust system for any restrictions. Refer to Procedure 011-009. |
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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 is low |
Check the batteries and the unswitched battery supply circuit. Refer to Procedure 013-009 or Procedure 019-087 in the Troublshooting and Repair Manual for CELECT™ Plus Systems, Bulletin 3666130, or the Troubleshooting and Repair Manual for CELECT™ Systems, Bulletin 3666084 and the OEM service manual. |
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Fuel shutoff valve(s) closed (electronically controlled injection) |
Check the fuel shutoff valve and circuit. Refer to Procedures Procedures 019-049 and 019-050 in the Troublshooting and Repair Manual for CELECT™ Plus Systems, Bulletin 3666130, or the Troubleshooting and Repair Manual for CELECT™ Systems, Bulletin 3666084. |
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Fuel shutoff valve(s) closed (mechanical fuel system) |
Use the manual opening knob. Check the shutoff valve and the electrical circuit. Refer to Procedure 005-043. Replace the shutoff valve if necessary. |
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Fuel pump is malfunctioning |
Check the fuel pump output pressure with INSITE™, an electronic service tool. Replace the fuel pump if necessary. Refer to Procedures 005-016 and 005-031. |
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Fuel grade is not correct for the application or the fuel quality is poor |
Operate the engine from a tank of high-quality fuel. Refer to Fuels for Cummins Engines, Bulletin 3379001. |
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Engine brakes are malfunctioning |
Check the engine brake operation, adjustment, and solenoid resistance. Repair or adjust as necessary. Refer to Procedure 020-001. |
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Injector sealing washer is not correct |
Remove the injectors and verify the injector sealing washer thickness. Refer to Procedures 006-005 and 006-026. |
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Injector is malfunctioning (PT/STC) |
Remove and check the injectors. Replace injectors as necessary. Refer to Procedure 006-026. |
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Camshaft end clearance is excessive |
Check the camshaft end clearance. Refer to Procedure 001-065. |
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Static injection timing is not correct |
Check the static injection timing. Refer to Procedure 006-025. |
