What are the reasons for no response when stepping on the accelerator in a JMC Shunda?
1 Answers
The reasons for no response when stepping on the accelerator in a JMC Shunda are as follows: Dirty throttle body or excessive carbon buildup in the fuel injectors: After driving a certain distance, a dirty throttle body can cause it not to close tightly or the idle speed stepper motor to get stuck, both of which can result in excessively high engine idle speed. Additionally, carbon deposits generated during engine operation can cause vehicle vibration, especially when starting the vehicle. The engine may vibrate more severely than usual or even fail to start on the first attempt. Therefore, when the vehicle experiences vibration, the throttle body and fuel injectors should be inspected first. If the throttle body is found to be dirty or the fuel injectors have excessive carbon buildup, they should be cleaned promptly. Aged engine mounts: Vehicle vibration can sometimes be related to aging engine mounts. Engine mounts are essentially the shock absorption system for the engine, responsible for absorbing minor vibrations during engine operation. If the engine mounts are faulty, these vibrations can be transmitted to the steering wheel and the interior of the vehicle, causing vibration at idle. When the car engine is idling, activating the electrical system is most likely to cause vehicle vibration, as the engine load increases due to the operation of the electrical system.
