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 100 of 1176
TM 9-2320-361-24-1
0006 00
0006 00-4
MECHANICAL SYSTEMS TROUBLESHOOTING - UNIT (Contd)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4. ENGINE STOPS DURING
NORMAL OPERATION
(Contd)
4. Check air induction system for
major restrictions.
5. Check idle speed (WP 0070 00).
If air induction system is restricted,
clean or replace defective components
(WP 0051 00–WP 0054 00).
If idle speed is set below
specifications, adjust (WP 0070 00).
5. ENGINE STOPS WHEN
ACCELERATOR IS
RETURNED TO IDLE
POSITION
1. Check air induction system for
restrictions.
2. Check idle speed (WP 0070 00).
If air induction system is restricted,
clean or replace defective
components (WP 0051 00–
WP 0054 00).
If idle speed is set below
specifications, adjust (WP 0070 00).
6. ENGINE MISFIRES
DURING OPERATION
1. Check air cleaner indicator
(TM 9-2320-361-10).
2. Check for air or water in fuel
system.
If red appears at indicator window,
inspect air intake head for
restrictions. If restrictions are not
present, replace air cleaner element
(WP 0052 00).
Perform WP 0006 00, table 1,
malfunction 2, step 2. Repair or
replace as required.
7. POOR ACCELERATION
AND/OR LACK OF
POWER
1. Check air cleaner indicator
(TM 9-2320-361-10).
2. Check air induction system for
restrictions.
3. Check fuel system for
restrictions.
4. Check exhaust system for
restrictions.
5. Inspect accelerator pedal and
throttle lever for full travel.
6. Check throttle linkage for
binding and sticking.
7. Check vehicle for dragging
brakes, low tire inflation, or
cargo load over limit
(TM 9-2320-361-10).
If red appears at indicator window,
inspect air intake head for
restrictions. If restrictions are not
present, replace air cleaner element
(WP 0052 00).
If air induction system is restricted,
clean or replace defective
components (WP 0051 00 –
WP 0054 00).
Replace restricted or damaged
parts (WP 0060 00).
If defects are evident during check,
adjust or replace components
(WP 0073 00) (For M50A3 series
vehicles, refer to WP 0074 00).
Adjust travel on throttle lever
(WP 0070 00).
If linkage is binding or sticking,
replace throttle linkage
(WP 0070 00).
1. Adjust brakes, tire pressure, and
cargo to proper limits.
2. Correct overload condition
(TM 9-2320-361-10).
Table 1. Engine Troubleshooting Procedures (Contd).
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