B3.9 and B5.9 Series Engines
Troubleshooting Symptoms Charts
Section TS - Troubleshooting Symptoms
Lubricating Oil Pressure High
This is symptom tree T104.
Allow the engine to warm to operating tem-
perature. If the engine will not reach operating
Engine is cold
temperature, refer to the Coolant Temperature
Below Normal symptom tree.
Make sure the correct lubricating oil is being
used. Refer to the Operation and Maintenance
ubricating oil viscosity not correct
Manual , B Series Engines, Bulletin No.
Make sure the correct oil filter is being used.
Refer to the Operation and Maintenance
ubricating oil filter is not correct
Manual, B Series Engines, Bulletin No.
ubricating oil pressure switch, gauge, or
Check the oil pressure switch, gauge, or
sensor is malfunctioning or is not in the
sensor for correct operation and location. Refer
to Procedure 007-052.
Check and replace valve. Refer to Procedure
ressure regulator valve struck open
Verify that the correct lubricating oil pump and
ubricating oil pump installation not correct
o-rings are installed. Refer to Procedure