Skip the auto shop - Our mechanics make house calls

Q: I started my car this morning and went to put it in drive. As soon as I took my foot off the brake to give gas it shut off completely.

asked by on

This morning I went and start my car it started on the second time I turned the key, however when I put it in drive and went to give it gas it stuttered and shut off

My car has 191585 miles.
My car has an automatic transmission.

This may be related to a couple of possible things. There is a component called an idle air control valve that monitors the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and at idle. This valve is controlled by the vehicle’s computer which will adjust idle speed based upon other measurements such as engine temperature, intake air temperature and electrical system load or voltage. When you accelerate, the engine RPM increases, and as you let off the gas, the RPM slowly returns to the normal idling speed. This is all controlled by the idle air control valve.

When the engine RPM drops below the normal range of 750-800 RPM (for most cars), this may indicate a dirty or faulty idle air control valve. As in your case, your vehicle may stall when you attempt to increase the RPM’s beyond an idle speed.

This may also be related to a 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 as you have noticed when taking your foot off of the brake.

To avoid any unnecessary repairs, I would suggest having a professional from YourMechanic come to your home to diagnose your stalling condition firsthand and service your throttle control system and idle air control valve 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
  • Home
  • Questions
  • I started my car this morning and went to put it in drive. As soon as I took my foot off the brake to give gas it shut off completely.

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: Problem with the engine. Stalling and fuel system issues.

You have done a good job of updating parts that may not have failed, but do tend to wear down and not work proficiently. When you replace the fuel pump, you must always replace the fuel filter as well. If...

Q: rear passenger window only works when used on the door, not the drivers panel

Hi there. Unfortunately, without knowing specifically what you may have removed or worked on, it's hard to give you an idea as to what the problem might be. It could be an electrical relay problem, exposed electrical wire or a...

Q: 2005 Ford Freestar 3.9l idles rough and then dies. OBD codes are P2196, P2198, P0172, P0175. Any likely fixes?

Hi Ben. Thanks for contacting us today. It appears you've got multiple component failures or problems that are causing this stalling issue you're experiencing. Two of the OBD-II codes that stand out are the P-0191 and P-2196 codes. I would...

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...
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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...