Table 3-1. Troubleshooting (Cont)
Test or inspection
Remove and check oil pressure line and gage orifice to oil pressure sensor.
If oil pressure line and gage orifice are free of restriction, refer to
DDEC II troubleshooting for oil pressure sensor and gage (page 3-
101) or DDEC III troubleshooting (page 3-345.0). If oil pressure line
and gage orifice are restricted, remove and clean oil pressure line
and gage orifice (page 4-322). If low oil pressure still exists, notify
direct support maintenance.
6. HIGH OIL CONSUMPTION.
Check for overfilled crankcase.
Fill/drain to proper level (page 2-3, Unit PMCS).
Check for oil in air reservoir tanks.
If oil is found in tanks, replace air compressor (page 4-22).
Check for indications of oil at turbocharger compressor outlet and turbine
If oil is found, notify direct support maintenance.
7. ENGINE OVERHEATS.
Check water pump for loose or damaged impeller.
Replace water pump (page 4-132).
Check for inoperative fan clutch.
Refer to Malfunctions 1 and 2 (page 3-27).
Check for steady or intermittent CHECK ENGINE LIGHT.
Refer to DDEC II troubleshooting (page 3-101).
Refer to DDEC III troubleshooting (page 3-345.0).
Check for faulty thermostats.
Replace thermostats (page 4-128).
1. RESTRICTED AIR FLOW INTO TURBOCHARGER.
Check for clogged or faulty filter element.
Replace filter element (page 4-61).
3-20 Change 3