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 TM 5-2420-224-20-1
Troubleshooting Symptom Index
Troubleshooting
Procedure
Malfunction
Page
Number
Malfunction
ENGINE
1.
ENGINE WILL NOT CRANK. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.
STARTER CONTINUES TO RUN AFTER STARTER SWITCH RELEASED . . . . . . . . .
ENGINE CRANKS SLOWLY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.
4.
ENGINE CRANKS BUT WILL NOT START OR HARD TO START
........
5.
ENGINE RUNS ROUGH OR LACKS POWER . . . . . . . . . . . . . . . . . . . . . .
FUEL CONSUMPTION EXCESSIVE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.
7.
DECELERATION SLOW OR UNEVEN. . . . . . . . . . . . . . . . . . . . .
IDLE SPEED ERRATIC . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.
ENGINE KNOCKS WHEN COLD . . . . . . . . . . . . . . . . . . . . . .. . . . . . .
9.
10.
OIL PRESSURE GAGE READS LOW OR NO OIL PRESSURE . . . . . . . . . . . . .
ENGINE USES TOO MUCH OIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11.
AIR INTAKE SYSTEM
12. AIR CLEANER RESTRICTOR INDICATOR LIGHT LIGHTS . . . . . . . . . . . . . .
EXHAUST SYSTEM
1 3 . EXHAUST FUMES ENTER CAB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14. EXHAUST NOISE EXCESSIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COOLING SYSTEM
15. LOSS OF ENGINE COOLANT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16. ENGINE OVERHEATS . .
..........................
ELECTRICAL SYSTEM
..............................
17.
NO ELECTRICAL POWER
RIGHT FRONT AUXILIARY HEADLIGHT LOW BEAM WILL NOT LIGHT . . . . . . . . .
18.
19.
RIGHT FRONT AUXILIARY HEADLIGHT HIGH BEAM WILL NOT LIGHT . . . . .
20.
RIGHT FRONT HEADLIGHT LOW BEAM WILL NOT LIGHT . . . . . . . . . . . . .
R I G H T FRONT HEADLIGHT HIGH BEAM WILL NOT LIGHT . . . . . . . . . . .
21.
LEFT FRONT AUXILIARY HEADLIGHT LOW BEAM WILL NOT LIGHT . . . . . . .
22.
23.
LEFT FRONT AUXILIARY HEADLIGHT HIGH BEAM WILL NOT LIGHT . . . . . .
LEFT FRONT HEADLIGHT LOW BEAM WILL NOT LIGHT . . . . . . . . . . . . . .
24.
LEFT FRONT HEADLIGHT HIGH BEAM WILL NOT LIGHT . . . . . . . . . . . . . .
25.
RIGHT FRONT TURN SIGNAL WILL NOT LIGHT . . . . . . . . . . . . . . . . . . .
26.
R I G H T FRONT MARKER LIGHT WILL NOT LIGHT . . . . . . . . . . . . . . . .
27.
28.
RIGHT FRONT BLACKOUT MARKER LIGHT WILL NOT LIGHT . . . . . . . . . . . . . . . . . .
29.
LEFT FRONT TURN SIGNAL WILL NOT LIGHT . . . . . . . . . . . . . . . . . . . .
LEFT FRONT MARKER LIGHT WILL NOT LIGHT . . . . . . . . . . . .
30.
LEFT FRONT BLACKOUT MARKER LIGHT WILL NOT LIGHT . . . . . . . . . . . . . . . . . .
31.
FRONT BLACKOUT LIGHT WILL NOT LIGHT . . . . . . . . . . . . . . . . . . . . .
32.
HORN WILL NOT SOUND . . . . . . . . . . . . . . . . . . . . . . . . . . .
33.
WINDSHIELD WASHER PUMP WILL NOT OPERATE . . . . . . . . . . . . . . . . . . . . . . . .
34.
WINDSHIELD WIPERS WILL NOT OPERATE . . . . . . . . . . . . . . . . . . . . . .
35.
D O M E LIGHT WILL NOT LIGHT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
36.
CAB HEATER FAN WILL NOT OPERATE . . . . . . . . . . . . . . . . . . . . . . . .
37.
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