Skip the auto shop - Our mechanics make house calls

Q: Engine dies when I stop.

asked by on

Last Friday, car died at the stop sign at the end of road. I was able to start it back up to get it back home. Next day, had the battery and alternator tested. Battery was bad. I replaced it. Replaced the radiator Sunday because antifreeze was all over engine. Drove it 15 minutes on Monday. It died at a stop sign. Wouldn't start back up. Tried to start it, it started blowing smoke through vents. Got off work Monday night and was able to start it back up and drive it home. Died when I stopped in the driveway. Someone plugged in a thing to check the engine light. It popped up a code that said co2 sensor was failing. He said that would only affect gas mileage. Had my oil changed Wednesday. Tried to drive it to work again. It died at the same stop sign 15 minutes away. Just got off work. Was able to start it up and drive it home again before it died when I stopped in the driveway. There is fluid in the radiator. Hoses are good. Don't think it's leaking anything.

My car has 230000 miles.
My car has an automatic transmission.

From what you describe it would appear that your vehicle is experiencing stalling. Stalling can be caused by many things. A few common causes for engine stalling are a bad idle air control valve, issues with the fuel system, or issues with the ignition system.

The idle air control valve is the component responsible for maintaining engine idle speed when the engine is not under load. If it has any issues, leaks, or fails, it may cause a rough idle or even stalling, If any of the components of the fuel or ignition systems, such as the fuel pump, fuel pressure regulator, ignition coil, or ignition module, fail or have an issue, they can also cause misfires and stalling. I would start my making sure that there are no vacuum leaks present, and then move on to checking the idle air control valve.

If you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect and diagnose this issue for you, and make or suggest any repairs as needed.

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

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: Engine in my Dodge Dakota truck with 105,000 miles is making a weird noise like a clothes dryer. I am not noticing any problems wi

With regard to maintenance, yes the transfer case oil should be changed as well as the engine coolant. YourMechanic can dispatch a certified mechanic to perform both of those services on a mobile basis. With regard to the engine noise,...

Q: Why is my steering wheel always locking and upside down exclamation point ?

Your steering wheel is supposed to lock when you turn off the car off. You cannot disable it. If you first straighten the steering wheel straight ahead before you turn it off then the steering wheel will not bind on...

Q: Rough ride

Hello, thank you for writing in. Before doing any testing, make sure the tires are properly inflated and in good condition. The first thing to do is called a "bounce test". It involves going to each tire, and pressing down...

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...
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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...