Q: Car won't accelerate when I press the gas pedal.

asked by on

Today, when I started the car, it struggled to start. Not the whining of a battery, but the car couldt seem to maintain rpm's. As I tried to accelerate, the engine didn't respond well. Then, later that night, I tried to start the car and it wouldn't start at all. I tried using jumper cables but without success. Not sure what is wrong.

My car has 249900 miles.
My car has a manual transmission.

The lack of acceleration or starting may be caused by many different things, but may be a sign of a failing throttle position sensor. The throttle position sensor (TPS) is a sensor used to monitor the throttle position of the throttle plate inside the throttle body in relation to your foot position on the gas pedal. Based upon the inputs from the sensor reading your foot’s position on the pedal, the ECU then makes the direction to supply more or less fuel to the motor. When this sensor is not working properly, this can cause intermittent responses when pressing the gas pedal. I would suggest having a professional from Your Mechanic come to you home to diagnose your throttle control system.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Car won't accelerate when I press the gas pedal.

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: My car's gas pedal goes out and the car won't drive anymore if my RPM reaches the number 3 on the gauge.

Hello, I would start by extracting the problem codes from engine management and the transmission as well. You don't mention it, but surely the Check Engine light is on at this point. These codes will help determine a strategy for...

Q: On my Honda Civic Hybrid 2008 HFT is in german language. How do I change HFT in english?

You would need to press the display button, then system settings, and then languages. In German, this will how you will read it. Press the Anzeigen Taste, then System Einstellungen, and then Sprachen. Now you can choose English.

Q: car temperature drops while driving and doesn't warm back up, then if I turn the car of it won't immediately restart.

Hello, thank you for writing in. Due to the recent repairs that have been done, you need to have them verified. If the thermostat was installed improperly, or the system was damaged before or during, then you may have these...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.