Q: Stop at stop sign, give it the gas, it want go, let up, push down agin it goes,the engine does not die.!!!!

asked by on November 22, 2016

Stop at stop sign, give it the gas, it want go, let up, push down agin it goes,the engine does not die.!!!!

asked by Dennis V on November 22, 2016

Stop at stop sign, give it the gas, it want go, let up, push down agin it goes,the engine does not die.!!!!

My car has 153000 miles. My car has an automatic transmission.

My car has 153000 miles.
My car has an automatic transmission.

Idle Control Valve Replacement $147.54 - $995.01 Get a Quote

What you are describing sounds like a dirty or failing idle air control valve. The idle air control valve 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 and will adjust idle speed based upon other measurements such as engine temperature, intake air temperature and electrical system load or voltage. This is also an important function when starting the motor as it allows the motor to run and idle on it’s own once the motor fires. 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 making the transition from a higher RPM back down to idle speed while adjusting the air/fuel ratio constantly to allow this to happen smoothly. 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 inspect your vehicle.

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

I have a 2016 ford f450 and the check engine light come on today with a bunch of codes. P0269, P0263, P0303, P0300, P0305, P0307,

Hi Josh. Thanks for contacting us today. It would be very helpful if you could let us know what symptoms you are having. This many codes typically indicates a fault with the ECU, so let us know what problems the...

Mechanic said OBD P0989 so need to replace silinoid for $1700. Should I try changing transmission fluid first? 2010 Cadillac SRX.

You should ask the mechanic if he actually directly tested the solenoid and, if so, what the specific test results are. If he did not test the solenoid, look for a new mechanic. Trouble codes can never be relied upon...

Exhaust manifold

You may have broken bolts or studs in the engine head that would cause an exhaust leak. You may need to remove the manifold and extract the broken off bolts from the cylinder head by drilling them out and using...

Will a k&d filter help improve the performance of my vw Jetta?

Hi there. If you're referring to a K & N Filter - I am a huge fan of their products. The team at K & N understands today's modern technology and creates air filtration products that comply with factory settings,...

Car lights come on brakes are stiff not sure electrical on military base but it won't start.

If the lights were on and burning up fuses even up to 30 amps, then there is a major short in the vehicle's wiring system. Check to see what the lights were tied into when the aftermarket lights were installed....

My engine light is on and after turning on my and driving for 5-10 minutes my VSA and "!" In a triangle comes on

Hi there. Best practices automotive diagnosis for today's cars, trucks and SUV's begins by completing a diagnostic scan to determine if any error codes have been detected and stored in the ECU. Since you seem to have a warning light...

Uneven tread wear and vibrating

I believe you have some suspension problems. If you have worn balljoints, then you will have a problem with uneven wear and tear on your tires. Also, you could have a problem with your control arms. The front of your...

How come my vehicle doesnt start when I turn the key in the ignition? I tried to jump start it, but nothing worked

Hello. This suggests you have a faulty connection or a power shortage somewhere in your electrical system if there is no power coming to your car from the other car. If there is power, but just a clicking sound this...

Turbo losing power

If the Turbo bearing is starting to go bad then the turbo may be noisy. The turbo could need to be inspected for fin damage or a binding waste gate operation. Also, the intake tubes would need to be checked...

Related articles

How to Drive a Prius in the Winter
Driving Driving during extreme weather conditions brings its own challenges. For example, snow and ice can make roads slippery, causing drivers to lose control of their vehicles. It can also be hard to stop when the roads are too slick....
The Best Used Cars to Buy If You’re a Painter
If If you’re a painter, and you work for someone else, chances are you don’t care all that much about what you drive, as long as it gets you to and from work reliably. On the other hand, if you...
The Best Used Cars to Buy If You Just Got Your License
If If you are a new driver, congratulations on getting your license. Now, you need to think about what type of vehicle to buy. Ideally, you’ll choose a used car that isn’t overly expensive, and is reliable and safe while...