M11 – Lubricating Oil Pressure High

Symptom Tree  

Lubricating oil pressure switch, gauge, or sensor is malfunctioning or is not in the correct location

Check the oil pressure switch, gauge, or sensor for correct operation and location. Refer to the OEM service manual.


Coolant temperature is below specification

Refer to the Coolant Temperature Below Normal symptom tree.


Lubricating oil does not meet specifications for operating conditions

Change the oil and filters. Refer to Procedure 007-013 (Lubricating Oil Filters – Spin-on) in Section 4. Use the oil type recommended in Section V.

Contact a Cummins Authorized Repair Facility

Last Modified:  19-Nov-2004