Why is the car throttle not accelerating?
2 Answers
Reasons why the car throttle is not accelerating: 1. Fuel line blockage: First check if the fuel filter is clogged, whether the fuel pump pressure is sufficient, and if the fuel injector is blocked. 2. Exhaust system blockage: Check the three-way catalytic converter and whether there is any blockage in the entire exhaust pipe. 3. Possible excessive carbon buildup in the throttle: The idle position sensor or air flow meter may be damaged. Here are precautions for operating the car throttle: (1) When the vehicle is driving normally, the foot should not be placed on the clutch pedal. (2) While driving, minimize the time of semi-engagement to prevent burning out the clutch friction plate. (3) Do not release the clutch too abruptly. The first gear should be the slowest, while other forward gears should be slightly faster. When starting in first gear, the clutch pedal must be fully depressed. When shifting up, the clutch pedal only needs to be depressed until the clutch friction plate disengages; it does not need to be fully depressed again.
As a seasoned driver with over 20 years of experience, I've dealt with countless situations where pressing the accelerator didn't result in proper acceleration. The most common issues include fuel system failures, such as insufficient fuel supply due to an aging fuel pump or clogged fuel injectors interrupting gasoline delivery; ignition system problems like excessive spark plug carbon buildup or damaged ignition coils leading to weak sparks; restricted air intake possibly caused by a clogged air filter preventing sufficient air intake; sensor malfunctions such as a faulty throttle position sensor making the computer unable to recognize pedal signals; other factors may include transmission slippage or severe engine carbon deposits. I recommend starting with simple checks—inspect if the air filter is dirty and replace the spark plugs, while avoiding sudden acceleration during daily driving to reduce carbon buildup. If the problem persists, promptly visit a professional repair shop for diagnostics—don't wait until it becomes dangerous during high-speed overtaking. Regular maintenance can prevent these issues, improving driving experience and engine longevity.
