TM 5-3805-280-24-1
Diagnostic Information
Symptom
Problem
Solution
Worn or broken compression rings
Route tube between radiator and
or cylinder head gasket leaking
overflow tank into a container of fluid
and check for bubbles. Bubbles
indicate head gasket leakage. See
Engine Repair chapter. Do
compression pressure test. See
Engine Repair chapter.
Engine Not Developing Full
Fuel filter plugged
Change filter. Bleed air.
9010
15
Power
4
Air filter plugged
Clean or replace air cleaner
elements.
Debris in fuel
Drain fuel tank. Clean Tank strainer.
Wrong fuel
Use correct fuel.
Fuel tank outlet fitting plugged
Clean.
Fast idle speed incorrect
Do Fast Idle Speed Adjustment. See
Group 9010-20.
Hydraulic system leakage
Do Hydraulic System Checks. See
Group 9025-25.
Fuel line to pump or pump return to
Check, repair.
tank restricted
Fuel pump
Do Fuel Pump Pressure Test. See
Engine Repair chapter.
Timing incorrect
Check injection pump timing. See
Engine Repair chapter.
Injection nozzles
Remove and test injection nozzles.
See Engine Repair chapter.
Low compression
Do Compression Pressure Test. See
Engine Repair chapter.
Injection pump delivery or governor
Repair pump. See your Local Fuel
Injection Pump Service Center.
Continued on next page
TX,9010,SB112 1929MAY984/12
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