Cummins N14 STC, Celect, Celect Plus – Service Manual Engine Starts But Will Not Keep Running

Symptom Tree  t072

This is symptom tree
Cause Correction

Electronic fault codes active or high counts of inactive fault codes

Refer to Section TF in the CELECT Plus™ Systems Troubleshooting and Repair Manual, Bulletin 3666130, or Section TF in the CELECT™ Systems Troubleshooting and Repair Manual, Bulletin 3666084.

 

Fuel level is low in the tank

Fill the supply tank. Refer to the OEM vehicle specifications.

 

Engine idle speed is set too low (mechanical fuel systems)

Adjust the fuel pump idle speed. Refer to Procedure 005-029 in Section 5.

 

Idle Shutdown or PTO Shutdown features are activated.

Turn the keyswitch OFF for 5 seconds. Turn the keyswitch ON and check fault lamp operation. the OEM service manual..

 

Air in the fuel system

Check for air in the fuel system. Refer to Procedure 006-003 in Section 6.

 

Engine-driven units are engaged

Disengage engine-driven units.

 

Fuel is waxing due to cold weather

Check the fuel heater, if installed. Weather conditions sometimes require a fuel heater.

 

Fuel inlet restriction

Check for fuel inlet restriction. Refer to Procedure 006-020 in Section 6.

 

Fuel shutoff valve (FSOV) is closed

Check the fuel shutoff valve and the electrical circuit. Refer to Procedure 019-050 in Section 19 of the CELECT Plus™ Systems Troubleshooting and Repair Manual, Bulletin 3666130, or Procedure 019-050 in Section 19 of the CELECT™ Systems Troubleshooting and Repair Manual, Bulletin 3666084.

 

Exhaust system restriction

Check the exhaust system for restrictions. Refer to Procedure 011-009 in Section 11.

 

Air intake system restriction

Check the air intake system for restriction. Refer to Procedure 010-031 in Section 10.

 

Fuel grade is not correct for the application or the fuel quality is poor

Operate the engine from a tank of known high quality fuel. Refer to Fuels for Cummins® Engines, Bulletin 3379001.

 

Fuel pump is malfunctioning

Check the fuel pump output pressure with INSITE™ electronic service tool. Replace the fuel pump, if necessary. Refer to Procedure 005-016 in Section 5.

 

Engine brake adjustment is not correct

Adjust the engine brakes. Refer to Procedure 020-024 in Section 20.

 

Injector cup spray holes are plugged

Remove and clean the injectors. Refer to Procedure 006-026 in Section 6.

 

Static injection timing is not correct

Check the static injection timing. Refer to Procedure 006-025 in Section 6.

 
Last Modified:  20-Mar-2012