Skip the auto shop - Our mechanics make house calls

Q: My car will only turn on when my foot is on the gas but turns off when its not

asked by on

My car will only turn on when my foot is on the gas but turns off when its not

My car has 200000 miles.
My car has an automatic transmission.

A: Hey there. This could be from a couple of p...

Hey there. This could be from a couple of potential problems. Your car has what is called a throttle position sensor which monitors the position of your foot on the gas pedal and relays this to the computer which then tells the fuel injection system how much fuel to inject into the motor. When this is not working properly, this can cause intermittent running conditions including what you describe. I would recommend having an expert from YourMechanic come to your home to diagnose the hard start and follow through with the correct repairs.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: The brake locks on me and won't let me start my car.

Hey there, thanks for writing in about your 2015 Chrysler 200. You may have a problem with the master cylinder or with the brake pedal assembly itself. The brake pedal needs to be pushed to start the vehicle, so if...

Q: Engine turns over but won't start

The ignition coil, ignition control module, or distributor rotor can all fail without warning, leading to a no start. The reason I am leaning towards an ignition system issue is that the vehicle was running before you went to the...

Q: Car set on AC only.

When the climate control unit on your vehicle stops functioning and is stuck on one setting it is typically caused by a hardware failure in the unit. This module would need to be replaced in order to fix it. Unfortunately...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...