Why does the accelerator feel weak when pressed down?

2 Answers
PrestonAnn
07/24/25 1:58pm
The reasons why the accelerator feels weak when pressed down: 1. Intake system failure: If there is air leakage or blockage in the intake system, the car will experience reduced power, inability to increase RPM, and body shaking when accelerating; 2. Clutch slipping: The most common phenomenon is that when the accelerator is pressed hard, the RPM rises quickly, but the speed does not increase, and there is a noticeable feeling of weak acceleration; 3. Ignition system failure: Both the ignition coil and spark plugs are wear-prone parts. If the spark plugs' performance declines or inferior spark plugs are used, it can lead to weak acceleration and shaking during acceleration; 4. Fuel system failure: Using low-quality gasoline can easily cause the fuel pump to burn out, catalytic converter failure, piston failure, etc., directly affecting engine power and making it difficult to increase speed.
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VanElijah
08/11/25 7:54am
Recently, my car also experienced a soft throttle response, which was really frustrating. Upon careful inspection, I found that the fuel pump was malfunctioning, causing insufficient fuel supply pressure. When this part fails, it can't keep up with the required fuel injection rate. Another possible culprit is a clogged fuel filter. Think of the fuel filter as a mask for your car—if it's blocked for too long, it will suffocate, right? Additionally, carbon buildup on the fuel injectors is a hidden killer. My car has over 80,000 kilometers on it, and the injectors were covered in black gunk. All these issues can make the throttle feel weak when pressed. Regular maintenance of the fuel system is crucial, especially since using low-quality fuel can accelerate these problems. If you notice a lack of power during acceleration, don't ignore it—get your fuel system checked immediately.
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