Conventionally, three types of jerks can be distinguished:
- at the moment of the beginning of the movement;
- during acceleration;
- with steady motion, i.e. at a constant position of the accelerator pedal.
To determine the causes of jerks when driving a car with an engine equipped with an injection system, special diagnostic equipment is required, therefore, in this case, we recommend contacting a car service that specializes in repairing fuel injection systems. However, as practice shows, in most cases, jerks are caused by insufficient fuel pressure in the fuel line (ramp) engine or throttle position sensor malfunction.
With some skills, the cause of jerks can be identified independently.