Hey Michelle 🙂

In most cases, a car that is running rough is suffering from an ignition problem. This means checking the major parts of the ignition system: spark plugs, ignition coil and distributor. Spark plugs are used to ignite the fuel in the combustion chamber. If they are defective, this causes jerking during acceleration. The problem can be solved by changing the spark plugs.

Which injectors are affected?
The injectors play an important role: they supply the combustion chamber with fuel, which is then ignited by the spark plugs. Poor quality gasoline or impurities can alter the pressure of the injection pump, which has consequences on the quality of combustion. The engine then loses power and the car jams.

Clogged filters?
Before reaching the injectors, the fluids (air and fuel) pass through filters. These filters retain impurities and can become clogged, preventing fluids from flowing normally and causing acceleration problems. If a vehicle is running rough, check the filters and change them if necessary.

A cracked hose?
The injection circuit includes hoses that must be completely tight. An air intake in a cracked hose can disrupt the flow of fluids and therefore cause a car to jam. For turbocharged engines, you should also check that the hoses are securely in place. A loose hose will cause the engine to lose power.

An ECU out of adjustment?
Newer vehicles are equipped with ECUs, which electronically manage certain automotive functions. If the ECU in charge of ignition and injection is faulty, the consequences can be a car that jams or suffers from holes when accelerating. In this case, you should ask a specialist to repair, reset or replace it.

Regards!