Faults 1-8
1. Engine does not start (oil temperature less than or equal to 20°C).
2. Engine does not start (oil temperature greater than or equal to 60°C).
3. Difficulty starting the engine (oil temperature less than or equal to 20°C).
4. Difficult start (oil temperature greater than or equal to 60°C).
5. Engine starts and «stalls».
6. Engine runs erratically at idle when warmed up.
7. Engine idle is out of specification.
8. Engine runs rough at idle.
Fault No | Check | |||||||
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |
X | X | X | X | Fuel pump | ||||
X | X | X | X | Fine fuel filter | ||||
X | X | X | X | X | X | injection pressure injectors | ||
X | X | X | X | X | X | Fuel pump delivery pressure | ||
X | X | X | Fuel pump performance | |||||
X | X | Fuel quality | ||||||
X | X | X | X | Additional fuel valve | ||||
X | X | X | X | Thermal time switch | ||||
X | X | X | X | start nozzle | ||||
X | X | X | X | X | X | X | X | injection nozzles |
X | X | X | X | X | coolant temperature sensor | |||
X | Throttle switch | |||||||
X | X | X | X | throttle body | ||||
X | X | X | X | Pneumatic throttle actuator | ||||
X | X | X | X | X | X | X | X | Air flow meter |
X | X | X | X | X | X | X | X | Electronic control unit |
X | X | X | X | X | X | X | X | Electric wires and their connections |
X | X | X | X | X | Fuel pump relay | |||
X | X | X | X | X | Air filter | |||
X | X | Engine cooling system | ||||||
X | X | Tightness of connections in the intake tract of the engine | ||||||
X | X | X | X | No foreign air entering the engine | ||||
X | X | X | X | X | X | X | Engine intake tract | |
Lack of combustible mixture at partial engine load |
Faults 9-17
9. Engine «shakes» during acceleration.
10. Engine «shakes» while moving at a constant speed.
11. Engine «shakes» at forced idle.
12. Knocking in the engine with an increase in the frequency of rotation of the crankshaft.
13. The engine does not have sufficient throttle response.
14. Increased fuel consumption.
15. Increased content of carbon monoxide and hydrocarbons in the exhaust gases at idle.
16. Reduced content of carbon monoxide and hydrocarbons in the exhaust gases at idle.
17. The engine does not develop full power.
Fault No | Check | ||||||||
9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | |
X | X | Fuel pump | |||||||
X | X | X | X | Fine fuel filter | |||||
X | X | X | X | X | injection pressure injectors | ||||
X | X | X | X | Fuel pump delivery pressure | |||||
X | X | X | Fuel pump performance | ||||||
X | X | X | X | X | X | Fuel quality | |||
X | Additional fuel valve | ||||||||
X | X | X | Thermal time switch | ||||||
X | X | X | X | X | start nozzle | ||||
X | X | X | X | X | X | X | X | injection nozzles | |
X | X | X | X | X | X | X | X | coolant temperature sensor | |
X | X | X | X | Throttle switch | |||||
X | X | X | throttle body | ||||||
X | Pneumatic throttle actuator | ||||||||
X | X | X | X | X | X | X | X | X | Air flow meter |
X | X | X | X | X | X | X | X | X | Electronic control unit |
X | X | X | X | X | X | X | X | X | Electric wires and their connections |
X | Fuel pump relay | ||||||||
X | X | X | X | X | X | X | Air filter | ||
X | X | X | X | X | X | X | Engine cooling system | ||
X | X | X | Tightness of connections in the intake tract of the engine | ||||||
X | X | X | X | No foreign air entering the engine | |||||
X | X | X | X | X | Engine intake tract | ||||
X | X | X | X | X | Lack of combustible mixture at partial engine load |