User’s Handbook, TPD 1285E, Issue 2 41
6
3.152
Fault diagnosis 6
Problems and possible causes
Engine problem
Possible causes
Checks by the user
Checks by the
workshop personnel
The starter motor turns the engine too slowly 1, 2, 3, 4
The engine does not start
5, 6, 7, 8, 9, 10, 12, 13, 14, 15,
17
34, 35, 36, 37, 38, 42, 43, 44
The engine is difficult to start
5, 7, 8, 9, 10, 11, 12, 13, 14, 15,
16, 17, 19
34, 36, 37, 38, 40, 42, 43, 44
Not enough power
8, 9, 10, 11, 12, 13, 16, 17, 18,
19, 20, 21
34, 36, 37, 38, 39, 42, 43, 44,
61, 63
Misfire 8, 9, 10, 12, 13, 15, 20, 22 34, 36, 37, 38, 39, 40, 41, 43
High fuel consumption 11, 13, 15, 17, 18, 19, 21, 22
34, 36, 37, 38, 39, 40, 42, 43,
44, 63
Black exhaust smoke 11, 13, 15, 17, 19, 21, 22
34, 36, 37, 38, 39, 40, 42, 43,
44, 61, 63
Blue or white exhaust smoke 4, 15, 21, 23
36, 37, 38, 39, 42, 44, 45, 52,
58, 62
The pressure of the lubricating oil is too low 4, 24, 25, 26 46, 47, 48, 50, 51, 59,
The engine knocks 9, 13, 15, 17, 20, 22, 23
36, 37, 40, 42, 44, 46, 52, 53,
60
The engine runs erratically
7, 8, 9, 10, 11, 12, 13, 15, 16,
18, 20, 22, 23
34, 38, 40, 41, 44, 52, 60,
Vibration 13, 18, 20, 27, 28 34, 38, 39, 40, 41, 44, 52, 54
The pressure of the lubricating oil is too high 4, 25 49
The engine temperature is too high
11, 13, 15, 19, 27, 29, 30, 32,
64
34, 36, 37, 39, 52, 55, 56, 57
Crankcase pressure 31, 33 39, 42, 44, 45, 52
Bad compression 11, 22
37, 39, 40, 42, 43, 44, 45, 53,
60
The engine starts and stops 10, 11, 12
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