Skip the auto shop - Our mechanics make house calls

Q: Car is stalling when giving too much gas. Won't start.

asked by on

My car will start 1/10 times. When it does start it idles fine and runs smoothly. I can give it gas slowly but when i give it more gas at a faster pace it will stall and not start again. Ive replaced the fuel filter, spark plugs and spark plug wires, and the knock sensor as well. I really need help.

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

This 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. If you’d like to get this fixed, I would suggest having a professional from YourMechanic come to your home to diagnose your issue and service your throttle control system as necessary.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: Carburetor issues with jeep.

I would ask for help from one of the experienced mechanics at YourMechanic. They have the experience and tools need to properly diagnose what is causing your jeep to stall out after starting.

Q: Car slowed down, bolted, and check engine light appeared

Hi there. You have an internal transmission failure. I have seen this a few times on this vehicle. Most of the time the valve body in the transmission just needs to be replaced, but other times it is the transmission...

Q: The gear shifter is not shifting

Hello and thank you for contacting YourMechanic. In the event that the engine is not starting and your battery is okay, then check the relay to the starter in the fuse box to see if the relay clicks when attempting...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.