Skip the auto shop - Our mechanics make house calls

Q: Died while driving and now it wont Idle on it's own

asked by on

I just replaced the fuel filter, cleaned up the cap&rotor and wasn't able to locate any hoses/vacuum lines that were disconnected. It seems like it runs out of fuel within a couple seconds after releasing throttle/gas pedal.

My car has 157000 miles.
My car has a manual transmission.

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. 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!
  1. Home
  2. Questions
  3. Died while driving and now it wont Idle on it's own

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: Can i put a blow off valve without a turbocharger?

Hello. An actual blow off valve is only made for turbocharged vehicles. This is a functional part of a turbocharger to keep the vehicle from over boosting. If you are looking to get the blow-off valve sound then there are...

Q: Engine won't idle when cold - 2001 Chevrolet Silverado

Hi there - given your repairs already, I would suspect a fuel-related issue, specifically the engine coolant temperature sensor (for engine management, not the gauge). If a faulty temperature signal is sent to engine management, the engine may not be...

Q: Can i place a 1.8 L 4-cylinder engine and tranny from a 95 corolla into a 99 corolla le?

Hi there. In regards to fitting, I believe you'd have to make some alterations to the motor mounts in order for the same sized engine to fit in two different year Corolla's. The major issue would be compatibility with the...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.