
User’s Handbook, TPD 1291E, Issue 2
45
6
4.236 Series
Fault diagnosis
6
Problems and possible causes
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,
18, 19, 20, 21
34, 36, 37, 38, 39, 42, 43, 44,
61, 63, 65
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,
23, 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 system 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
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 system is too high
4, 25
49
The engine oil 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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Summary of Contents for 4.236 Series
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