What Causes the Jerking Sensation When Releasing the Accelerator?
2 Answers
The reasons for the jerking sensation when releasing the accelerator are: transmission abnormalities, insufficient transmission fluid, or deterioration of the fluid quality. The working principle of the accelerator is: when the accelerator pedal is pressed, it directly controls the throttle valve, causing the throttle opening to increase and allowing more air to enter the engine. At this point, the ECU commands the fuel injection system to inject more fuel, increasing the engine speed and thus accelerating the vehicle. Precautions for using the accelerator include: 1. Press and release the accelerator pedal gently and smoothly; 2. Coordinate the release of the clutch with pressing the accelerator promptly and precisely; 3. Select appropriate gears to ensure the engine operates mostly at medium speeds and larger throttle openings for fuel efficiency; 4. Before stopping or turning off the engine, release the accelerator pedal first and avoid suddenly revving the engine in neutral.
I've been driving for twenty years, and the most annoying thing is when the car jerks when I let off the gas, like it's having a spasm. This issue is largely related to clutch wear, especially in manual transmission cars. When the clutch disc ages, it gets stuck, and gear shifts become noticeably rough. Additionally, spark plug carbon buildup often causes trouble—poor ignition leads to shaky driving. I remember once ignoring this issue, and it resulted in a transmission oil leak, costing me a fortune to fix. I recommend checking the clutch system early, cleaning carbon deposits every 10,000 to 20,000 kilometers, and maintaining smooth driving. If you're driving an automatic, it might be a transmission control unit issue—have a professional mechanic diagnose it with a computer. Overall, this isn’t a minor problem; it can damage the car and affect driving safety. Addressing it early saves hassle.
