Q: starts and dies immediately

asked by on

Starts and dies constantly

My car has 150000 miles.
My car has an automatic transmission.

This may be related to many different things, but suggests that there may be a fuel delivery issue such as failing injectors, low fuel pressure or a faulty idle air control valve. The idle air control valve is located on or near your intake manifold that monitors the air intake as it is mixed with fuel prior to being injected into the engine. 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. However, when the engine RPM drops below the normal range of 800 RPM (for most cars), it is more than likely that you are dealing with an IAC valve problem. In cases where this valve is clogged or is failing, your vehicle will stall instead of slowing to an idle after the release of the throttle. I would recommend having an expert from YourMechanic come to your home to replace your idle air control valve. Low fuel pressure will cause the injectors to fail to deliver the proper amount of fuel to the intake resulting in the engine starving for fuel upon start up to continue running.

Was this answer helpful?
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. starts and dies immediately

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: Q: Hood cannot be opened

Hey there. You may need to have another person check on the hood latch in the center front when pulling on the release. If it will not work, then the vehicle may need to be on a lift to access...

Q: Q: check engine light on

There is a special service campaign from the manufacturer for this problem. Your vehicle may be covered for the repair under service bulletin number 15824-01 dated August 9th 2016. The bulletin covers codes P0010 and P0013 for the intake or...

Q: Whining noise. 1999 Chevrolet Tahoe

Hi there. If you are only hearing the noise in those speed ranges, then you may have bad overrunning clutch needle bearings inside the transmission. In this case, the transmission will need to be overhauled and repaired. If you would...

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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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...