Fault Tracing - Volvo Penta D13 Operator's Manual

Fault handling
A number of symptoms and possible causes of engine malfunctions are described in the table below. Always
contact your Volvo Penta dealer if any problems occur that you cannot solve by yourself.
NOTICE! Read the safety regulations for care and maintenance in the Safety precautions for maintenance and
service operations chapter before work you start work.
Symptoms and possible causes
Engine cannot be stopped
Starter motor does not rotate
Starter motor rotates slowly
Starter motor rotates normally but engine does not start 11, 12, 13, 14, 37, 38
Engine starts but stops again
Engine does not reach correct operating speed at full
throttle
Engine runs unevenly
Engine vibrates
High fuel consumption
Black exhaust smoke
Blue or white exhaust smoke
Lubricating oil pressure too low
Coolant temperature too high
Coolant temperature too low
No charge, or poor charge
1. Discharged batteries
2. Poor contact/open circuit in cables
3. Main switch in off position
4. Shut down system activated
5. Check valve in feed pump leaks
6. Control lever not in neutral/helm station not activated
7. Faulty shutdown relay
8. Alternator drive belt broken/slips
9. Faulty starter relay
10. Faulty starter motor
11. Lack of fuel
- fuel taps are closed
- fuel tank is empty
- wrong tank connected
12. Blocked primary fuel filter/secondary fuel filter
(due to contamination or paraffin precipitation in the fuel at low temperatures)
13. Air in the fuel system
14. Water or contaminants in fuel
15. Boat abnormally loaded
16. Fouling on hull/propeller
17. Cables for unit injector damaged (open circuit)
18. Faulty unit injector
48

Fault Tracing

2
1, 2, 3, 6, 7, 9, 10, 35, 3
1, 2
4, 11, 12, 13, 14, 19, 36
5, 12, 13, 14, 15, 16, 17, 18, 19, 20, 23, 33, 36, 38,
5, 14, 15,
24
15, 16, 18, 21, 36
19
21, 34
22
25, 26, 27, 28, 29, 30, 31, 32
31
2, 8
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