My engine stalls at idle?

On the starting issue, it might be an idle air problem. Opening the throttle bypasses the idle air system.

You might check for troublecodes, some of the national brand autostores will check codes for free.

engine started to stall would'nt run with out foot on the gas. Put in shop and they replaced the throttle pos. sensor. ran good for aprox. one month. then same problem ,,stalls unless you keep foot on the gas. I replaced the throttle sensor and it ran good for 4 days and now it is stalling . What is my problem?? Please help it's my girlfriends car

Hi
Think Idle Air Control Solenoid is at fault. Controls idle via ECM signal. Iac located on left side intake manifold try removing and cleaning with carb cleaner. Also cleanout passages.
Hope this helps
Thanks for donate

That was going to be my next move,and your confermation helped me not look like a boob to my girl ! ( Thanks ) Did as suggested and cleaned tha MAP sensor also,,,so far so good Thanks again !!!
Tom Allison

You done good
Testostern Rules

every time when i stop at red light engine is stop running. i put new start plugs and put new gas filter still does it. i dont know what else i can do.when starting to stop dash light feel like going down too (i dont like to use my credit card for donate if you have other option please letme know)

Has the check engine light come on? Have you checked for vacuum leaks? Has the fuel pressure been checked?

Let me know.

Joe

engine light is not on but i did not chek vacuum leaks or fuel pressure....can i do it myself if i can how or i need to take to services

Me again, holly molly. okay, so since my last question I took it in couldn't get a code so I don't run the air because if I do it will stall out.But now if it is driven a while and it is super hot out like it has been it will stall out without air on.It only does this if you come to a stop or when you start to take off.When it completely shuts off it will start usually after two or three times.Also, it feels like it just slightly loses power or slips when i am driving it down the road,not always but after it has been driven a while when it is hot out.Few days ago it shut off and check engine light stayed on few miles later it shut off again and engine light went off.then it came back on just randomly driving with no issues with light coming on,then went off later on driving it.The best way to explain is it acts like it is vapor locking but it can't vapor lock can it?Any thought?Thank you

Good morning,

I would have the codes tested at a parts store to see what system is asking for help. Once we know the codes, we can help narrow the area of failure.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

As far as the stalling.

I would consider the idle air control valve. It is a very common failure. You cannot clean this valve as the area that sticks is not accessible for cleaning. It is a replacement only. I controls the idle speed.

https://www.2carpros.com/articles/how-to-replace-an-idle-speed-control-motor-iac

Also, the base idle on the throttle body needs to be set at 500 RPM in neutral.

https://www.2carpros.com/articles/stall-at-idle

https://www.2carpros.com/articles/throttle-actuator-service

Check these and let me know what you find.

Roy

Thank you. I will see if it will give a code and check these out.

You are welcome.

Always glad to help.

Roy

I want to know if you guys have heard of this problem before. My Ford starts then dies when the vehicle has been sitting for a long time. But when you press on the gas and hold it the vehicle will stay running, when you let go it drops to low rpm's and dies. After about 15-30 minutes of this it starts right up. Fuel pump has been replaced by the dealer about 2 months ago when I bought the car. I checked fuel pressure at key on engine off got 60 psi and checked while the car is running and got 65 psi. Also when you start the car in the morning it only takes a couple of times of starting and dying. But if I drive the car and let it sit for 8 - 10 hours and try to start the car it will start and die for about 15 minutes. I have to keep the gas pedal pressed just to keep the rpm's up.

Hi, you have a vacuum leak or the IAC motor is bad. If no vacuum leak is pressent replace the IAC valve.

let me know how it goes,,, thanks for using 2carpros.com


https://www.2carpros.com/how_does_it_work/how_an_idle_air_control_iac_works.htm

2000 Ford Explorer 160000 miles
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When i start the car and it is idle it will cut off if i do not press the gas it is fuel injection. what cause that problem I had a tuneup last year.

this usually means that you idle air control valve is not working and needs to be replaced. this valve is what maintains the proper idle. hope this helps

My 2000 ford explorer wont idle when it is cold. It keeps stalling. It ill idle after it warms up but low around 500 rpm.

This could be a few things. Has the check engine light come on? Have you checked for vacuum leaks? Also, have you checked the EGR valve to make sure it is not carboned to a point that it isn't working?

Let me know.

Joe

i have replaced the iac valve and this didn't help. My next step is to replace the egr valve hope this works.