TM 5-2420-230-24-2
B3.9 and B5.9 Series Engines
Troubleshooting Symptoms Charts
Section TS - Troubleshooting Symptoms
Page TS-73
Lubricating Oil Temperature Above Specification
This is symptom tree T107.
Cause
Correction
Refer to the Coolant Temperature Above
Coolant temperature is above specification
.......
Normal - Gradual Overheat symptom tree.
OK
L
ubricating oil level is above or below specifi-
Check the oil level. Add or drain oil, if neces-
.......
sary. Refer to Procedure 007-043.
cation
OK
L
Check the oil cooler. Refer to Procedure
ubricating oil cooler is malfunctioning
.......
007-003.
OK
O
EM components cooled with engine lubricat-
Check OEM components. Refer to the OEM
.......
ing oil are malfunctioning
service manual.
L-657