Skip the auto shop - Our mechanics make house calls

Q: Car is stalling

asked by on

Backed out from parking space, once I put the car in drive, the engine sputtered and died. I tried starting it again, but each time i put it in drive, the same thing happened. Even in reverse the car sputtered but kept going. It would not stay cranked in drive.

My car has 46644 miles.
My car has an automatic transmission.

A: You may have a dirty or failing idle air co...

You may have a dirty or failing idle air control valve. The idle air control valve reads the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and at idle. Since this valve is controlled by the vehicle's computer, it will adjust idle speed based upon other measurements such as engine temperature, intake air temperature and electrical system load or voltage. The idle air control valve also helps to transition the load on the engine when shifting in and out of gear. When you accelerate, the engine RPM increases, and as you let off the gas, the RPM slowly returns to the normal idling speed with the help of the idle air control valve. When the engine RPM drops below the normal range of about ~800 RPM, this often times will cause the engine to stall indicating a dirty or faulty idle air control valve. I would recommend having an expert from YourMechanic come to your location to diagnose and repair your idle air control valve.

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: Code P0400; EGR System

If you checked the EGR valve and cleaned it, the first thing to do is to start and idle the engine and use a vacuum pump or source to pull open the EGR valve to see if it makes the...

Q: My car started to stutter then it suddenly turned off

Hi there: There could be multiple issues that are causing your engine stumbling issue with the 2010 Nissan Maxima. In many cases, this is due to a restriction in the air to fuel ratio caused by damage or a faulty...

Q: Why won't my windshield wipers stop?

Hello, thank you for writing in. The vehicle may be having issues with the wiper motors, or the switch. There will need to be some electrical testing done on the vehicle to properly determine which component is responsible for the...

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...
How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...