Troubleshooting Symptoms Charts
B3.9 and B5.9 Series Engines
Section TS - Troubleshooting Symptoms
Engine Will Not Shut Off
This is symptom tree T081.
Check the air intake ducts. Locate and isolate
Engine is running on fumes drawn into the air
the source of the fumes. Repair as necessary.
Refer to the OEM service manuals.
Stop the engine mechanically, by moving the
manual shutoff lever to the STOP position.
uel shutoff valve (FSOV) is malfunctioning
Check for correct solenoid operation. Refer to
Remove the fuel pump. Refer to Procedure
uel injection pump is malfunctioning
005-012 or 005-014. Calibrate the fuel pump.