What are the reasons for the new car's inability to accelerate when the throttle is fully pressed?

[DiSarah]

There are mainly the following situations when the car cannot accelerate after stepping on the throttle: 1. The throttle pedal is blocked by the floor mat: If the floor mat is not placed properly, or the model of the floor mat does not match the vehicle, the throttle pedal may be blocked, preventing acceleration. 2. Throttle pedal malfunction: If the throttle pedal's cable is faulty, or the throttle sensor is malfunctioning, the throttle cannot function properly. 3. Clogged fuel system: If the car's fuel system is clogged, fuel cannot be transported normally, and the engine's efficiency cannot increase. 4. Ignition system failure: If the car's spark plugs are damaged, the fuel in the cylinders cannot burn properly, resulting in the car's inability to accelerate.

[VanAlice]

As someone who has been driving for over a decade, common reasons why a new car's speed doesn't increase when the accelerator is fully pressed include a stuck throttle valve or a clogged air filter, which affects the engine's air intake and leads to insufficient power. It could also be due to a loose accelerator cable or a transmission system issue, such as automatic transmission slippage, causing high engine RPM but no wheel movement. For a brand-new car, it's best not to push it hard; take it to the 4S shop for inspection immediately to prevent minor issues from turning into major repairs. Maintain the habit of gently pressing the accelerator when starting, and regularly check the filter and connecting components during daily driving.

[JordanLee]

As an average car owner, I've encountered similar issues. When the car doesn't accelerate quickly after pressing the gas pedal, first check if it's accidentally in a low gear, such as manual mode or snow mode in automatic transmissions limiting speed. An incompletely released parking brake can also lock the wheels. Insufficient tire pressure increases resistance and affects acceleration too. These simple checks can rule out common problems. Always pay attention to operational details to prevent enthusiastic starts from damaging your new car.

[SanAriana]

I think the car's electronic system is crucial. Throttle response lag is commonly caused by a faulty throttle position sensor or an ECU software bug, where the sensor fails to send correct signals to the engine. New cars might have factory setting issues or wiring short circuits. Using a diagnostic tool to check error codes can quickly locate the problem, so it's best to visit a repair shop as soon as possible to calibrate the system.