Reasons Why Your Car Does Not Accelerate When You Push The Gas?

Has it ever happened to you that you try to accelerate when going uphill and push down on the gas, but nothing much happens? It is very annoying and dangerous too sometimes but what can you do? 

Generally, there can be multiple reasons why the car is accelerating at the right place. Every time you push down on the gas pedal, many components, sensors, and systems need to work seamlessly to make the car move forward. Any failure at any point can make the car stall even after you push the gas. 

Why Does The Car Not Accelerate? 

It is crucial that when your car does not accelerate even after you push on the gas pedal, you need to figure out the problem. You can take care of the problem and fix the issues before they get out of hand only if you know the reason for this problem. 

Well, as a general thumb rule every vehicle should be periodically checked and timely maintenance would keep major problems at bay.  However, sometimes the problems could be due to some issue that regular maintenance cannot take care of. Majorly if you pay attention, they are two kinds of issues that you might come across. 

● The car fuel tank running short of fuel

● The power is not sufficient for the car to keep running

Common Causes Of A Car Not Accelerating?

Several reasons your car may not accelerate even after you push the gas. Some of these are minor causes and can be taken care of quickly, while some reasons are due to major problems and require serious and immediate repairs. 

●      Airflow Sensor: When you find that your vehicle is not moving at the speed it should be the first thing you must do is to check the airflow sensor. At times it might be damaged or blocked, which could lead to acceleration issues. The sensor is connected to the air cleaner and measures the air that flows into the engine.

So, if this sensor is not functioning at its optimal pace due to any block or any minor damage the engine will receive wrong signals which are transferred to the control unit of the engine. 

● Fluid levels: in automatic transmission systems, low transmission fluid is the most common reason for cars not accelerating correctly. The transmission fluid is crucial for lubricating the parts and keeping the car running smoothly.

● A faulty clutch: usually, the clutch problem is more prevalent in manual cars, the automatic cars can also have this issue. The torque converter and the transmission have clutch plates that can wear out and get damaged if insufficient transmission fluid exists. 

● Spark plug: any misfiring spark plug can directly cause problems with acceleration. A lack of power is a clear sign of faulty spark plugs. If the engine cannot ignite, there will be a lack of acceleration. 

● Worn-out gears: if you notice a lack of acceleration and the cause is not the low fluid levels, the transmission slipping can be a clear sign of a worn-out band. Every time you change gears, the damaged band allows the transmission to rotate without making the car move. 

● Solenoids: a solenoid is a coil of wire wrapped around a non-magnetic core and receives an electric current from the ignition switch and the battery. A faulty solenoid problem can turn a car into a ‘limp mode.’ This shields the engine and transmission from bigger failure or an accident.

● Malfunction of the oxygen sensor: the exhaust emission is monitored by the oxygen sensor in a car. It helps maintain the correct ratio of air and fuel mixture necessary for optimal performance. If the functioning of this sensor is faulty, then it would affect the performance of the engine and all this will cause a problem with acceleration.  

● Faulty fuel filter: the fuel filter has to be changed regularly. A fuel filter can accumulate debris and dirt, resulting in slow acceleration. The accumulated dirt can make the fuel heavier and make it difficult to move easily through the fuel system. Proper lubrication is the key to a car running smoothly. 

Error with the ECU: ECU or the Electronic Control Unit may have some error that could cause the system to react to wrong information. If the system thinks that the car is producing excessive fumes, it will bring the power to the engine down and thus cause slow acceleration. 

How Serious Are Acceleration Issues? 

Generally, the problems related to acceleration are not serious. If you leave it, then the problems will only get bigger. If you are not aware of the mechanics of your car, it is best to take the car to a garage or call a mechanic to check it thoroughly. 

Most professional auto service centers can easily check and fix the acceleration problem. If you bring your car for repairs as soon as you notice the problem, the repairs may not cost much.

At times the cost of the repair work could be high which could deter you from servicing your vehicle. But it is not advisable to neglect these repairs and attend to them on time as they might pave a path to bigger problems.

Can driving slow be dangerous? 

Most people connect driving at slow speeds with safer and better driving. It is fine to drive at slow speeds on busy roads where slower speeds are necessary.

However, it is crucial that a driver can maintain the minimum driving speed; otherwise, there will be chaos on the roads. Often, driving too slow is as dangerous as driving fast.

A slow driver can force other drivers to change their speed or change lanes and cause more accidents. So, if you are having acceleration problems, it is best not to ignore the issue


You expect your car to respond when you step on the accelerator. Any car receiving enough fuel and in good condition should accelerate as expected. If this does not happen and the car hesitates, then the car is facing a problem.

A car that does not accelerate correctly needs to be repaired immediately. Timely assessment of the issue and servicing done to the vehicle could help you keep your vehicle well maintained and drive it at your own speed.



Liam Dare

As CEO of, my passion for the automotive world motivates me to build online businesses that provide information and entertainment to users. I am proud to contribute in a positive way to the automotive community.