Skip the auto shop - Our mechanics make house calls

Q: Car shuts off when I hit the gas.

asked by on

For two weeks my SUV would sputter when I would first start to press the gas. It would only do it when I first started the vehicle. Last night I went to leave church, and I went to accelerate and it just shut off. I had a check ingine light the other day. Was a loose gas cap. The problem has gotten worse since the light was reset. Now the light is back on. The vehicle will eventually go, but it takes a few tries. It usually stays running after I get it out of the parking lot.

My car has 55000 miles.
My car has an automatic transmission.

A: This may be a sign of a failing throttle po...

This may be a sign of a failing throttle position sensor. The throttle position sensor (TPS) is used to monitor the throttle position of the throttle plate inside the throttle body in relation to your foot’s position on the gas pedal. This sensor is usually located on the throttle plate, inside the throttle body, so that it can directly monitor the position of the throttle. Based on the readings of this sensor, the ECU then makes the decision to supply more or less fuel to the motor.

When this sensor is not working properly, it can cause intermittent responses or cause it to die when the gas pedal is pressed.

It is recommended that you get a certified technician, such as one from YourMechanic, to come to your location and replace the throttle position sensor after a thorough inspection of the throttle control system.

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

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: Hello trying to trace the wires from throttle position sensor,because sensor not responding to throttle body

Hi there. Check the harness to the transmission and see if there is power. If there is no power, then check the harness for any broken wires or burned wires that could keep the transmission from working. If you had...

Q: New brakes

On a relatively new car such as yours, the need for "brake work" is typically determined based on a visual check of "depth of remaining pad friction material". Brake pads are still generally good so long as there is at...

Q: Engine lite just started flashing on and off and the car is shaking while in the stopped position

The flashing check engine light is letting you know that there is a problem that is urgent or the catalyst may be damaged. You most likely have a failed ignition coil or failed spark plug. In order to find out...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...