Engine will not idle - stalls?

Tiny
OBXAUTOMEDIC
  • MECHANIC
  • 3,711 POSTS
Just take a look at the vacuum hoses if they are cracked or very soft they should be replaced. If you have any doubt about a hose take it off block off one end use a rag over the other and blow through it if you hear air leaking then replace it.

Have you removed and cleaned out the IAC Valve. The valve may not be bad just carboned up and not openning or closing and cleaning it may fix you problem. It sounds like either a vacuum leak somewhere or the IAC.
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Friday, October 9th, 2020 AT 12:59 PM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Welcome to the world of computer controlled cars, lol

Roy
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Friday, October 9th, 2020 AT 12:59 PM (Merged)
Tiny
OLDREDEXPLORER
  • MEMBER
  • 4 POSTS
I will try your suggestions later tonight after I get the kids to sleep. Thank you for your time. I don't have a lot but if I leave a donation will you get it?
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Friday, October 9th, 2020 AT 12:59 PM (Merged)
Tiny
JEREMY LESH
  • MEMBER
  • 7 POSTS
Bah humbug it is not a security issue my truck has no security system
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Friday, October 9th, 2020 AT 12:59 PM (Merged)
Tiny
BLUWOLFF
  • MEMBER
  • 2 POSTS
  • 1997 FORD EXPLORER
  • V8
  • 4WD
  • AUTOMATIC
My 97 ford explorer stalls when idle, and taking foot off gas. Like coming to a stop sign or stop light, or slowing down to make a turn. If I keep one foot lightly on gas, and apply the brake, it doesnt happen. It runs great otherwise, never happens as long as car is moving at same speed, only slowing down or coming to stop. Any ideas where to start to fix the problem? Also need to point out that we lived in a very rural area, lots of dirt roads. I had my brakes done about a year ago, and the mechanic told me that they knocked about 2 tons of dirt off of my under carriage. Any help is greatly appreciated. Thank you, Liane
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Friday, October 9th, 2020 AT 12:59 PM (Merged)
Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
You may have a bad IAC ( idle air control) but try cleaning the throttle body first. Remove the intake snorkel, have someone hold the throttle wide open for you and scrub the back side of the throttle plate and surrounding bore with an old tooth brush and some carb cleaner. Be sure to spray some into the small holes next to the throttle plate. That should help stabilize the idle. If it still has a problem, replace the IAC.
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Friday, October 9th, 2020 AT 12:59 PM (Merged)
Tiny
KEVINBARR
  • MEMBER
  • 1 POST
  • 1997 FORD EXPLORER
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 200,000 MILES
Recently my car was over heating and when I hit the brakes it would die. The brakes have been acting like there is air in the line and need to be blead. I'm not sure if the two things are related but I am wondering if there could be a short in ABS that is causing the engine to die.
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Friday, October 9th, 2020 AT 12:59 PM (Merged)
Tiny
MHPAUTOS
  • MECHANIC
  • 31,938 POSTS
Hi there,

I would be thinking that I could be a booster problem as if it has a bad vacuum leak this could cause the engine to stall, try unhooking the booster vacuum line and blocking it, run the engine and apply the brakes see if this improves things.

Mark (mhpautos)
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Friday, October 9th, 2020 AT 12:59 PM (Merged)
Tiny
KEN MILLICAN
  • MEMBER
  • 2 POSTS
  • 1997 FORD EXPLORER
  • V8
  • 2WD
  • AUTOMATIC
  • 215,000 MILES
My explorer has started to idle at a very high rpm. The normal idle was just under 1000, now it idles at 2000 -2500 and will not idle down any lower. While driving it requires more brake and is not safe to drive now. Is there a sensor or fuse that Controls the idle? If so where can I locate it?
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Friday, October 9th, 2020 AT 12:59 PM (Merged)
Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
Do you have a check engine light on? The idle air contol valve is what controls idle, it may be faulty. If your engin light is on then you may also have a vacuum leak, one way you can check for that is mist some brake kleen around all of the hoses and around the intake maniflold, if the idle changes while doing this, then there is a vacuum leak in the vicinity of where you last sprayed
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Friday, October 9th, 2020 AT 12:59 PM (Merged)
Tiny
KEN MILLICAN
  • MEMBER
  • 2 POSTS
The check engine light is on. Is there somehow I can check it?
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Friday, October 9th, 2020 AT 12:59 PM (Merged)
Tiny
2CP-ARCHIVES
  • MEMBER
  • 4,542 POSTS
  • 1997 FORD EXPLORER
  • 180,000 MILES
My truck will not stay running. When you crank it, it stalls and dies. It can stay running if I give it gas. My check engine light is not on and I've already replaced the MAF sensor and the fuel filter.
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Friday, October 9th, 2020 AT 12:59 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Clean out the idle air control valve and see what happens-let me know
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Friday, October 9th, 2020 AT 12:59 PM (Merged)
Tiny
TREYSTEWART
  • MEMBER
  • 4 POSTS
I cleaned my idle air control valve and it half way fixed my problem. My truck will idle now with no problem, thank you. But it still stalls when I put it in drive or reverse.
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Friday, October 9th, 2020 AT 12:59 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Yw-Maybe the torque converter clutch solenoid is stuck
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Friday, October 9th, 2020 AT 12:59 PM (Merged)
Tiny
TREYSTEWART
  • MEMBER
  • 4 POSTS
  • 1997 FORD EXPLORER
  • 180,000 MILES
My 1997 ford explorer XLT stalls when I slow down to fast. If I brake early and slow down very slowly it doesn't shut off. Only when I slow down normally or to fast. I noticed to when I give it a little gas while I brake, it doesn't stall and I also noticed that it only stalls while braking when my gas gauge reads a quarter tank or less. If I have a full tank or anything over a quarter tank it doesn't shut off. I thought it might be fuel rushing to one side of the tank when I slow down to fast and the pump not being able to catch any of the fuel but I could be wrong.
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Friday, October 9th, 2020 AT 12:59 PM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
I would have the idle air control valve checked. The base isle needs to be checked. Check for vacuum leaks. Is the check engine light on?

Roy
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Friday, October 9th, 2020 AT 12:59 PM (Merged)
Tiny
TREYSTEWART
  • MEMBER
  • 4 POSTS
I will check the air control valve. And My check engine light I not on.
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Friday, October 9th, 2020 AT 12:59 PM (Merged)
Tiny
LILSMITTY13
  • MEMBER
  • 1 POST
  • 1996 FORD EXPLORER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 254,019 MILES
My car wants to die everytime I come to a stop sign. But if I hold the gas down a little it will stay running so what could that be.
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Friday, October 9th, 2020 AT 1:30 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Could be one of these; idle air control motor/valve, throttle position sensor, MAF sensor-PCV and EGR valves.
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Friday, October 9th, 2020 AT 1:30 PM (Merged)

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