1. Fuel system issues:
Insufficient fuel: The fuel level in the tank is low, resulting in insufficient fuel supply.
Poor fuel quality: Fuel contains impurities or moisture, which affects fuel injection and combustion.
Oil circuit blockage: Fuel filters, oil pipes, and other parts are blocked by impurities, resulting in poor fuel supply.
Fuel injector malfunction: Fuel injector blockage or abnormal injection pressure, affecting fuel injection.
2. Electrical system issues:
Low battery power: The battery is low or aging, and cannot provide enough power to start the starter motor.
Starter motor malfunction: The starter motor is damaged or has poor contact, causing the engine to fail to rotate.
Circuit malfunction: Abnormal circuit connection, such as damaged wires, loose connectors, etc.
3. Mechanical failure:
Insufficient cylinder pressure: piston ring wear, poor valve sealing, etc. lead to a decrease in cylinder pressure.
Air filter blockage: Air filter blockage restricts air from entering the engine, affecting combustion.
Cooling system malfunction: Insufficient coolant or clogged radiator causing engine overheating.
4. Environmental factors:
Low temperature environment: Low temperature causes an increase in diesel viscosity and a decrease in fluidity.
High altitude areas: thin air, reduced intake volume, affecting starting performance.
