Troubleshooting chart
16
x =
Probable
o =
Possible
1.
EDC self-diagnosis or flash code output
2.
Starter turns over engine only slowly or not at all
3.
Starter turns, engine does not start, engine does not start / difficult to start when cold
4.
Engine stalls (dies) during operation, no longer starts (starter turns), engine does not start / starts with difficulty when hot
5.
Sudden, temporary engine shut-down, engine does not reach full revs
6.
Engine only runs at idle speed, no throttle response
7.
Engine only runs at increased idle speed, no throttle response
8.
Rated engine speed distinctly reduced (even under no load)
9.
Reduced output in all ranges
10. Irregular engine operation, traction loss
11. Unstable idle speed, engine hunting, misfiring, knocking in engine
12. Engine judder
13. Unusual combustion noise
14. Excessive smoke emission: White smoke / blue smoke
15. Excessive smoke emission: Black smoke
16. Engine temperature too high (coolant loss)
17. Intermediate engine speed control cannot be activated / does not switch off,
engine revs too high
18. Fuel consumption too high
19. Lubricating oil pressure too low
20. Lubricating oil pressure too high
21. Lubricating oil consumption too high
22. Engine too loud / mechanical noise
Possible causes
x
Coolant level too low, air in coolant circuit
x
V-belt for water pump drive not tensioned correctly
x Incorrect V-belt tension
x
Water pump leaking, faulty / thermostat faulty, does not open
x
Coolant lines leaking, clogged or twisted
x
Coolant entering combustion chamber (cylinder head / gasket leaking)
x
Resistor bank EDC control unit pin 51
x
x x o
o
Power supply to EDC control unit interrupted or battery voltage too low /
Relay K1 faulty
x x o
o
Line terminal 15 to EDC control unit (pin 47) interrupted / loose contact
x
Line defective: Pin 23 or 41
x
o o o
EDC control unit faulty (internal fault)
x
x x x
o o
o x
Incorrect EDC control unit (check MAN part number)
x x
o
Intermediate engine speed activated
x
EOL programming terminated / voltage interrupt
x
Afterrunning not completed (e.g. shut-down via EMERGENCY STOP)
x
EOL programming: configuration incorrect
x
Engine bearings worn
Summary of Contents for D 2866 LUE 605
Page 1: ......
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Page 14: ...Notes 12...
Page 19: ...Memoranda 17...
Page 20: ...Engine views 18 Engine views 3 4 2 1 7 6 5 8 11 10 9...
Page 68: ...Memoranda 66...
Page 133: ...131 Service Data...
Page 157: ...155 Special tools...
Page 158: ...Special tools 156 2 3 4 5 6 7 8 1 6 1 6 2 6 3 9 1 9 2 9 3 9...
Page 162: ...Special tools 160 21 22 25 25 2 24 25 1 26 27 1 27 2 27 20 1 19 2 19 1 20 2 19 20 23 28...
Page 164: ...Special tools 162 30 31 32 1 32 32 2...
Page 167: ...Special tools 165 Pressing mandel for cap dia 62 1 mm Pressing mandel for cap dia 50 1 mm...
Page 170: ...Notes 168...
Page 173: ......
Page 174: ......