Skip the auto shop - Our mechanics make house calls

Q: Car shuts down quite often?

asked by on

Have to keep one foot on brake pedal and the other foot on gas pedal in order for my car not to shut down when coming to stops at like stoplights and also sometimes when making sharp turns if when this happens I have to put the car in neutral to get it started again, also when putting it in park after done driving it, it shuts down immediately. Just want to know what could be causing this problem?

My car has 188886 miles.
My car has an automatic transmission.

Hi There, It sounds like you may have a dirty or faulty idle air control valve. The idle air control valve reads the air intake as it comes into the motor. This is controlled by the car’s ECM which uses this information to make adjustments to the air/fuel ratio depending on various inputs such as outside air temperature, intake air temperature, load and various other things. As you accelerate, your car’s engine is receiving a much higher dose of fuel than when at idle and conversely, when you let off the gas pedal, there is a sudden change in this fuel supply as a result of your foot letting off the pedal. When this happens, the job of the idle air control valve is to bring this deceleration down to a slow and smooth idle rather than suddenly cutting off the fuel supply causing the motor to die. When the idle air control valve is not working properly, this cause a disruption in this process resulting in the engine not being able to idle properly. I would recommend having a professional come to your location to diagnose and inspect your vehicle.

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
  1. Home
  2. Questions
  3. Car shuts down quite often?

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: A tow truck driver told me a had a hole in my oil pan & my engine was no good, what we be the best way to know my engine is gone.?

Hi there. If a rock or something hit your oil pan to damage it, and the engine was running while this occurred, it's possible that additional internal damage may have occurred. It's also possible that the damage has been done...

Q: ESC light

The traction control system monitors the steering stability of the vehicle and engages when loss of traction has been detected. This is done by the use of electronic sensors that communicate with the Power Train Control Module (PCM) regarding steering...

Q: The car won't run for longer than 30 sec.

When the car will only run with the choke applied, this suggests there is a larger fuel delivery problem. Start by checking the fuel lines, filter, etc., to be sure they are all free of dirt or any kind...

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 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...
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...