TM-9-2320-361-24-1
2-1/2 TON, 6X6, M44A2 SERIES TRUCKS
TECHNICAL MANUAL; FIELD AND SUSTAINMENT MAINTENANCE PART 1 OF 2
AUGUST 2006
TM-9-2320-361-24-1 - Page 130 of 1176
TM 9-2320-361-24-1
0008 00
0008 00-2
MECHANICAL SYSTEMS TROUBLESHOOTING - DIRECT SUPPORT (Contd)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. ENGINE WILL NOT
CRANK (Contd)
5. Install fuel injector nozzle
(WP 0067 00).
6. Check oil pump for seizure.
Remove oil pump (WP 0036 00)
and manually turn oil pump
drive gear.
7. Check air intake manifold for
presence of water.
CAUTION
Starting engine after correcting
piston fluid-locked condition must be
done with care. When pistons have
been fluid-locked within cylinders,
connecting rods may have been
damaged and can be identified
during test run by abnormal
vibration or noise. Do not operate
engine when these conditions exist.
Permanent engine damage may
result.
8. Remove water from air induction
system, if present and perform
an engine test run.
9. Check turbocharger housing for
presence of water, identified by
water on turbocharger fins or
hubs.
10. Test run engine.
11. Remove intake manifold and
gasket. Inspect for defects
(WP 0041 00).
3. If engine crankshaft will not turn
or turns hard, check internal
components for seizure. Remove
oil pan (WP 0035 00) and inspect
crankshaft for nicks, burns,
grooves, scuffs, or discoloration
due to overheating. If nicked,
burned, grooved, scuffed, or
discolored replace engine
(WP 0046 00).
If drive gear will not turn, replace oil
pump (WP 0036 00).
If water is present within air cleaner,
disassemble and drain air intake
manifold (WP 0041 00).
If engine operates with unusual
sounds or vibration, refer to WP
0008 00, table 1, malfunction 16
or 17.
If water is present, replace
turbocharger (WP 0057 00).
If engine operates with unusual
sounds or vibration, refer to WP
0008 00, table 1, malfunction 16
or 17.
If intake manifold is defective,
replace (WP 0041 00).
Table 1. Engine Troubleshooting Procedures (Contd).
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