TM 5-3805-280-24-1
Diagnostic Information
Symptom
Problem
Solution
Wiring harness
Check wiring harness. See Group
9015-15.
Auto-Idle Does Not Work
Pilot oil pressure switches (swing,
Check pilot oil pressure switches.
Auto-Idle, and travel)
See Group 9015-15.
Engine control motor.
Check engine control motor. See
Group 9015-15.
9010
15
Engine and pump controller
Check controller. See Group
7
9015-15.
Wiring harness
Check wiring harness. See Group
9015-15.
Coolant Temperature Too Low
Thermostat stuck open
Replace thermostat. See Engine
Repair chapter.
Temperature gauge
Install new gauge or sending unit.
Oil In Coolant Or Coolant In
Oil cooler leaking
Test, repair. See Engine Repair
chapter.
Head gasket leaking
Inspect, and replace. See Engine
Repair chapter.
Cylinder head cracked
Check, replace. See Engine Repair
chapter.
Liner packing leaking and/or cracked
Remove pan, inspect bottom end,
cylinder block
repair, verify and replace if
necessary. See Engine Repair
chapter.
Low Engine Oil Pressure
Oil level low
Fill to proper level.
Oil filter plugged
Install new oil filter and oil.
Oil pump intake screen plugged or
Clean. See Engine Repair chapter.
loose
Wrong grade of oil or fuel dilution
Use correct grade of oil. See Engine
Repair chapter.
Continued on next page
TX,9010,SB112 1929MAY987/12
3-34
