TM 5-2420-230-24-2
Troubleshooting Symptoms Charts
B3.9 and B5.9 Series Engines
Page TS-74
Section TS - Troubleshooting Symptoms
Lubricating or Transmission Oil in the Coolant
This is symptom tree T108.
Cause
Correction
Check the bulk coolant supply. Drain the
coolant, and replace with noncontaminated
Bulk coolant supply is contaminated
.......
coolant. Replace the coolant filters. Refer to
Procedure 008-018.
OK
L
Check the oil cooler. Refer to Procedure
ubricating oil cooler is malfunctioning
.......
007-003.
OK
T
orque converter cooler or hydraulic oil cooler
Remove and inspect the cooler cores and
.......
is malfunctioning
o-rings. Refer to the OEM service manual.
OK
A
Inspect the air compressor cylinder head and
gasket. Refer to Procedure 012-014 and the
ir compressor cylinder head is cracked or
.......
Master Repair Manual, Holset Compressors,
porous, or has a leaking gasket
Bulletin No. 3666121.
OK
C
Check the cylinder head gasket. Refer to
ylinder head gasket is leaking
.......
Procedure 002-004 or 002-021.
OK
C
Pressure-test the cylinder head. Refer to
ylinder head is cracked or porous
.......
Procedure 002-004.
OK
C
Inspect the cylinder block. Refer to Procedure
ylinder block is cracked or porous
.......
001-026.
L-658