STALLING

2004 Ford Expedition

Tiny

jasonjoansand

June, 5, 2008 AT 2:38 PM

Engine Performance problem
2004 Ford Expedition V8 Two Wheel Drive Automatic 150000 miles

My expedition is idling rough and acts like it wants to stall. Once the engine warms up it idles rough then it will idle ok for a minute the it idles rough for a minute, then ok, then rough, etc. What might be causing this?

FOUND 24446 RELATED QUESTIONS

Cj Stalling When Idling

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Stalling Out

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1 Answer

Tiny

merlin2021

June, 5, 2008 AT 2:43 PM

You may have a vacuum leak, get a can of spray gumout, spray the vac lines and maniflod area, when the idle changes, youve found the leak! You want the engine running and spray on the outside but do direct the stream onto the hoses, if it is a vacuum leak, the engine idle will change speed, then you have detected a leak, repair the vacuum leak and see how it runs! If that doesnt do it, you may need a new idle air control valve, it's bolted to the throttlebody

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