Fuel injectors: common defects and their signs

1. Clogging.
   • Troubles during engine start occur.
   • Engine power lowers.
   • The engine cylinders operation is not stable at low rpm.
   • The accelerator pedal sinks to the floor when it is pressed sharply.
   • The car accelerates slower.
   • Engine detonation occurs.
   • Fuel consumption increases.
   • The oxygen sensor breaks down.
2. Winding short-circuit.
   • The car moves with jerks at acceleration or gear switching.
   • Fuel is consumed more intensely.
   • The engine operation at idling is not stable.
   • Start of the engine gets troubled in cold weather.
   • The vehicle accelerates slower.

How to replace fuel injectors?

Usually, repair of the fuel injectors is not performed. Some car owners use special additives for fuel to clean the components, however, their usage is not recommended, as they influence other car elements aggressively. In order to make the fuel injectors serve longer, you need to fill only high-quality fuel into the tank.

Replacement of these parts should be performed at a service station. Specialists recommend to replace all the injectors on the car, even if only one of them is defective, because lifetime of the components is almost equal. It is also necessary to replace all sealing elements during installation of new fuel injectors. Operation of a car with untight seals of the injectors is forbidden, because it can cause fire.