The most common causes of jerking while stopping your car are spark plugs that have worn out, airflow issues, and transmission control module. If none of these are the case, then you should check your car’s air intake. In addition, the jerking may also be an indication of a problem with the fuel system, as it is causing your car to struggle to pull away.
The first thing you should check if your car jerks while stopped is the airflow. A leaky air filter or unmetered air entering your engine’s air intake can be a major cause of jerking. Other potential leak sources are intake ducting, hoses, or the throttle body gasket. Another potential culprit is a dirty throttle body, which can cause your car to jerk during acceleration.
Spark plugs that are worn out
If your car jerks while you’re stopped, chances are that you’re experiencing a worn out spark plug. A worn spark plug can cause your engine to misfire because it’s unable to ignite the fuel in your cylinders in a timely manner. You may also experience power shortages. Fortunately, spark plug replacement is relatively cheap and easy.
Transmission control module
Your vehicle may be experiencing an Automatic Transmission Control Module (ATM) problem. This problem affects nearly every make and model of car. Here’s what you need to know to diagnose this issue. You can save time and money by ordering your parts online or from a mechanic. Remember to add labor and taxes. This problem affects both manual and automatic transmissions. You may need to have your car checked by a mechanic, who will give you an estimate before he starts work on your vehicle.
Proper air intake
Check the air intake and mass airflow sensor. These components measure the amount of air flowing into the engine and relay that information to the car’s computer to ensure an appropriate air/fuel ratio. If one of these components is not functioning correctly, your car will jerk while accelerating uphill or while stopped. If you suspect this issue, you should check the engine check light on the dashboard and confirm the problem using an OBD2 scan tool.
What causes an engine misfire? A misfire occurs when an engine has zero or incomplete combustion, which results in hesitation when starting or running. It may cause the check engine light to come on, which will also store a diagnostic trouble code. The codes associated with engine misfire are P0300 to P0312.