Question about 2001 Ford Expedition

1 Answer

Engine won't idle

For about a month the engine has taken a little more revolutions to get started. Now I have to give it gas, and when it's cold it stalls out. After it's warm I get a rough/rolling idle between 400-600rpm. Clogged fuel filter? Spark plugs?

Thanks,
Kevin

Posted by on

  • yadayada
    yadayada May 11, 2010

    Sounds like an intake manifold vacuum leak

×

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 11 Answers

Idle air control sensor is the problem. even if the check engine light is not on...it wont go on with this issue if it is out of degree as theses sensors are adjustable and can be retarted or advanced...its on the throttle body loosen the 2 phillips head screws and play with the timing of sensor to make it idle properly...or if you have guages it calls for 10degree ****** at idle.

Posted on Sep 11, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

1994 FORD TAURUS


Do you smell gasoline fuel ?? When there's too much fuel, it saturates the spark plugs, preventing ignition. Let it sit for an hour to let spark plugs dry, then it starts OK later. Next time, turn starter without giving any throttle or very small throttle as engine turns. Myself, when my 2006 Dodge Plymouth minivan (sitting in storage) needs to start, I squirt (half second) starting fluid into air filter, close the air filter housing to trap flammable gas from starting fluid, then turn the engine without pressing on throttle. When the engine starts is when I give it a little throttle to bring up the RPM to 2,000 until it idles on its own without stalling from cold engine.

Nov 29, 2013 | 1994 Ford Taurus

1 Answer

1995 toyota corolla, car will not turn over, hs power and wants to turn over, but does not


While the engine is cold, try starting it and giving a little gas while you start it. If it starts, release your foot and see if it keeps running. If it stalls out, start it again (by giving a little gas again) and then keep your foot on the gas slightly to keep it from going to it's normal idle. Once the engine is warmed up, let off the gas and see if it stays running again. If it does then you need to clean/reaplace the IAC valve that is on the throttle body.

If you can, remove it and clean it out with carb cleaner (like B-12) and an old toothbrush. It could save you some money from having to replace it.

Jun 10, 2012 | 1995 Toyota Corolla

1 Answer

Is the idle air valve an acceleration problem? It started accelerating it self now that its getting colder. Is it like the choke in older models?


No to both questions. The idle valve is only for idle control, letting in more or less air as idle conditions warrant, to keep engine at proper idle RPM. The old choke would reduce air supply on a cold engine to allow starting with a richer gas mixture. That function is taken over by the computer in injected cars by allowing longer injector pulses to give richer mixtures in cold engines. Once warm, the 02 sensor controls fuel trim through the computer.
By "accelerating itself", do you mean your idle is higher now that it's colder outside? I suppose it's possible if the idle valve is out of calibration, it might cause that. It is computer controlled, so proper diagnosis of the idle control valve requires a multimeter. The throttle position sensor should also be looked at for a high idle. Good luck.

Nov 05, 2011 | 1989 Oldsmobile Cutlass Ciera

1 Answer

I have a 2000 mustang that will not stay running,,, it was running fine, i parked it for two months in the cold and didnt start it up, when i did... it wont run if u give it gas however it will set and...


I would run the fuel pump for a little while with the fuel line disconnected from the engine into a gas can . Although you might have changed everything you might still have residual water in lines or motor. I would still put dry gas in the tank

Jan 31, 2011 | 2000 Ford Mustang

1 Answer

1992 Chevy S10 2.5L-4 cylinder. just started today outta no were. it idles really rough and pops then when i step on the gas it sputters and pops also smokes a little. help please..


My 1990 S10 pick-up had a similar problem too. It would start up fine (while the engine was cold) then once the engine warmed up it would idle very rough, sputter, and even stall out. My grandpa and I found what was wrong finally. The fuel distributor had been cracked, so when the engine warmed up it would miss (giving either too much or not enough fuel). So I recommend that you check that. Hope this helps.

Jan 02, 2011 | Chevrolet S 10 Cars & Trucks

2 Answers

Sometimes to start you have to give it a lot of


Hi
This sounds like a cold start system fault, which is a number of things.
  1. Cold start temperature sensor not operating correctly so the cold start system won't work when the engine is cold.
  2. The idle needs to be set to the correct RPM of the engine when warm, if it is idling ok when it is warm then this wont be the problem.
  3. Spark Plugs are worn and need replacing.
Most case's its the cold start system not operating correctly and if you have a good workshop to take it too they should pick this up quite quickly. Hope this helps, let me know how you get on.

Apr 03, 2010 | 1996 Toyota Corolla

1 Answer

92 grand marquie stalls at idle engine light comes on


I would venture to guess that your TPS has malfunctioned. The idle holds when the engine is cold correct?

Nov 12, 2008 | 1992 Mercury Grand Marquis

Not finding what you are looking for?
2001 Ford Expedition Logo

268 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

60667 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21936 Answers

Fordexpert

Level 3 Expert

5331 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...