Why does the car not accelerate when the throttle is fully pressed?
2 Answers
The reasons why the car does not accelerate when the throttle is fully pressed are as follows: 1. Fuel line blockage: When the car's fuel line system is blocked, especially if the fuel injector is clogged, fuel cannot be fully transported, resulting in incomplete combustion in the engine cylinder. Therefore, the engine power of the car will decrease, leading to the situation where the car does not accelerate when the throttle is pressed. 2. Exhaust system failure: Exhaust system failures are usually caused by a clogged catalytic converter or exhaust pipe, which can also result in the car not accelerating when the throttle is pressed. 3. Throttle carbon buildup: When the car has been driven for too many miles, carbon deposits will form if the engine throttle is not cleaned, affecting fuel combustion and ultimately causing a decrease in car power and an increase in fuel consumption. 4. Throttle pedal failure: If the cable inside the throttle pedal fails or the throttle pedal gets stuck, it can also cause the throttle not to accelerate.
I've encountered situations where the car doesn't accelerate even when flooring the accelerator after years of driving, and it's usually not a big issue. The most likely cause is a problem with the fuel system, such as an aging fuel pump not supplying enough gasoline or clogged fuel injectors failing to deliver fuel, resulting in a lack of engine power. Additionally, if the spark plugs are too old and don't ignite properly, the car won't speed up even when you press the accelerator hard. Last time this happened to me, replacing the air filter solved the problem because it was clogged and affecting air intake. Another possibility is transmission slippage, which is especially common in automatic cars, and worn clutches can also lead to this issue. I recommend starting with simple checks, like inspecting whether the air filter is clean or adding some fuel system cleaner and taking the car for a high-speed run. For safety, it's best to get it checked by a professional shop promptly to avoid breaking down on the road.
