What to Do When the Car Doesn't Accelerate Even with the Throttle Fully Pressed?

[MiaMarie]

Solutions for when the car doesn't accelerate even with the throttle fully pressed are: 1. Reposition the floor mat; 2. Replace or repair the throttle pedal; 3. Replace or clean the throttle position sensor; 4. Inspect and clean the car's fuel system; 5. Replace the engine spark plugs. The throttle in a car is located on the right side under the dashboard as the first pedal. The throttle pedal does not directly control the fuel injection amount. Pressing the throttle pedal directly controls the throttle valve, which increases the throttle opening, allowing more air to enter the engine. The ECU then commands the fuel injection system to inject more fuel, increasing the engine's RPM and causing the car to accelerate.

[Brady]

When the throttle is fully pressed but the speed doesn't increase, I think there might be several mechanical issues to check. The most common one is a clogged air filter. When it's dirty, it restricts air intake, and the engine can't suck in enough air, naturally losing power. Replacing it with a new one might solve the problem. Carbon buildup in the throttle body or sensor failure is also common. These can affect throttle signal transmission, and if the ECU control is off, it will limit output. Transmission issues like clutch slippage or sluggish shifting in automatic transmissions can also cause power loss, especially in older cars or those that haven't been serviced for a long time. A clogged catalytic converter in the exhaust pipe can also worsen the situation—I've seen many such cases. I recommend first checking the air filter and fuel line connections yourself, and trying a simple throttle body cleaning. If that doesn't help, take it to a professional shop for a diagnostic scan immediately to avoid dangers on the highway. Don’t slack on regular maintenance—changing the oil and oil filter every 5,000 kilometers can greatly reduce such failures.

[VanMargaret]

I once had the trouble of the car not accelerating when I floored the gas pedal, which was quite frustrating. After checking, I found the air filter was clogged with dust, and replacing it solved the problem easily. It could also be caused by old spark plugs leading to poor ignition, or insufficient fuel pressure from the fuel pump. These minor issues can often be fixed by replacing the parts yourself. When the check engine light comes on, it's best to use an OBD scanner to read the codes and understand the cause. Avoid driving long distances forcefully, as it can worsen engine or transmission problems. My suggestion is to start with basic maintenance, such as cleaning the intake system every six months and checking the fuel lines for leaks. If you lack experience, ask a friend or visit a 4S shop for help—it's faster and safer. A cost-effective and worry-free approach is regular maintenance, don't wait until it costs a fortune to fix.

[DiPaislee]

When the car's speed cannot increase, I believe safety is the top priority. First, pull over and turn on the hazard lights. It might be due to a clogged air filter or a faulty fuel pump, which limits power output. In severe cases, engine oil leaks or a blocked catalytic converter can be even more dangerous. Avoid sudden movements; drive slowly to a repair shop or call for assistance—don’t risk driving on the highway. Regular checks of oil pressure and the exhaust system can prevent issues. Inspect dashboard lights and unusual noises monthly. Driving safety is no trivial matter—if a problem arises, stop immediately.

[DelMarcus]

I encountered throttle failure with no speed increase. Generally, start with simple steps: first check if the air filter is dirty and replace it if necessary; verify if there's enough fuel and refill if low; for automatic transmissions, try switching to sport mode or manual shifting; observe the dashboard for any warning lights. The issue might be caused by sensor failure or fuel line blockage. If there's no improvement, take it to a professional shop for scanning and diagnosis. Regular maintenance, such as changing engine oil and filters, and checking every 3,000 kilometers, can prevent most malfunctions.