What Causes the Car Throttle to Be Unstable and Jerky?
1 Answers
Car throttle instability and jerking can be caused by issues such as fuel pump failure, clogged fuel filter, blocked fuel injectors, or damaged spark plugs. The reasons for car throttle instability and jerking are as follows: 1. If the car experiences throttle instability and frequent jerking, it is likely due to fuel supply problems. Insufficient fuel pump pressure may lead to premature aging of the pump. In such cases, it is recommended to replace the fuel pump promptly. 2. A clogged or leaking fuel filter can also result in insufficient fuel supply, causing the throttle to jerk when pressed. It is advisable to replace the fuel filter for testing. The fuel filter's role is to remove impurities from the fuel, improving fuel quality and enhancing engine efficiency. It is recommended to replace the fuel filter every 1-2 years. 3. Blocked fuel injectors can lead to poor fuel atomization, potentially causing misfires in one or multiple cylinders. The engine may shake violently at idle or during acceleration. It is recommended to remove the fuel injectors and use professional testing equipment for diagnosis. 4. Damaged spark plugs or ignition coils can also result in poor car ignition, leading to unstable engine power output with frequent jerking. Spark plugs are prone to carbon buildup or aging over time, so regular replacement is advised.
