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Mechanical Gas Fuel System G5.9, G8.3 – Engine Shuts Off Unexpectedly or Dies During Deceleration

Symptom Tree  t064

This is symptom tree t064
Cause Correction

OEM engine protection system is active or is malfunctioning

Isolate the OEM engine protection system. Follow the OEM service manuals to check for a malfunction.
 

Fuel shutoff is malfunctioning

Check for loose wires and verify that the fuel shutoff valve is functioning. Refer to Procedure 005-044.
 

Engine will not restart

Refer to the Engine Difficult to Start or Will Not Start symptom tree.
 

Ignition system is malfunctioning or misfiring

Check the ignition system. Refer to Procedure 013-012, 013-014 or 013-016 and to the ignition system OEM literature.

 

Stop/Run switch circuit is malfunctioning

Check the Stop/Run switch circuit. Refer to the OEM service literature.
 

Throttle plate is malfunctioning

Check the throttle plate for sticking. Refer to a Cummins Authorized Repair Facility.
 
Last Modified:  19-Mar-2004
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