Lubricating Oil Pressure - Low
Cause Corrections
----------
Oil Level Incorrect
OK
f
Add or drain engine oil. Refer to Proce-
dures 2-06 and 2-07. Check dipstick
calibration. Refer to Procedure 2-10.
----------
External Oil Leaks
OK
f
Visually inspect for oil leaks. Repair as
necessary.
----------
Oil Pressure Switch/Gauge/Sensor
Malfunctioning or Incorrect Location
OK
f
Verify the pressure switch/gauge/sensor is
functioning correctly. Refer to Procedure
2-21.
----------
Engine Angularity or Power Angle
Exceeding Limit
OK
f
Check power angle in vehicle. Check
terrain where low oil pressure occurs.
Refer to specifications.
----------
Oil Does Not Meet specifications
OK
f
Change oil and filters and check oil
specifications. Refer to the N14 Operation
and Maintenance Manual, Bulletin No.
3666024.
----------
Oil Temperature Above Specification
(120°C [250°F])
OK
f
Refer to ‘‘Lubrication Oil Temperature
Above Specification’’ Symptom Chart.
----------
Oil Contaminated With Coolant or Fuel
OK
f
Refer to ‘‘Lubricating Oil Contami-
nated’’ Symptom Chart.
(Continued)
Troubleshooting Symptoms Charts SectionT-Troubleshooting
N14Page T-88
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