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Page Title:
MECHANICAL SYSTEMS TROUBLESHOOTING INDEX - UNIT |
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 TM 9-2320-361-24-1
FIELD TROUBLESHOOTING
2-1/2 TON, 6X6, M44A2 SERIES TRUCKS (MULTIFUEL)
MECHANICAL SYSTEMS TROUBLESHOOTING INDEX - UNIT
MALFUNCTION
TROUBLESHOOTING
NO.
MALFUNCTION
WORK PACKAGE/PAGE
ENGINE
1.
Engine will not crank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.
Engine cranks but will not start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.
Starter cranks engine slowly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.
Engine stops during normal operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.
Engine stops when accelerator is returned to idle position . . . . . . . . . . . . . . . . . . .
6.
Engine misfires during operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.
Poor acceleration and/or lack of power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.
Engine surges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.
Excessive engine oil loss or consumption during normal operation . . . . . . . . . . . . .
10.
Engine oil pressure too low or too high at normal operation temperature . . . . . . .
11.
Excessive vibration or clunking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12.
Excessive fuel consumption; exhaust color blue and/or excessive smoke . . . . . . . . .
EXHAUST SYSTEM
1.
Exhaust color blue during normal operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.
Exhaust color white during normal operation and idle . . . . . . . . . . . . . . . . . . . . . . .
3.
Excessive exhaust noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.
Exhaust fumes in cab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MANIFOLD HEATER SYSTEM
Engine cranks but will not start in cold weather
(fuel system operating properly) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0006-00-8
COOLING SYSTEM
1. Engine temperature gauge above 230 F (110 C) . . . . . . . . . . . . . . . . . . . . . . . . . . . 0006-00-9
2. Engine does not reach normal operating temperature . . . . . . . . . . . . . . . . . . . . . . . 0006-00-10
3. Coolant loss during normal operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0006-00-10
FUEL SYSTEM
No fuel at fuel injectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0006-00-11
PERSONNEL HOT WATER HEATER
Personnel hot water heater does not heat cab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0006-00-11
0005 00-1
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