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2004 Ford Expedition STALLING

Tiny
JASONJOANSAND
  • MEMBER
  • 2004 FORD EXPEDITION
  • V8
  • 2WD
  • AUTOMATIC
  • 150,000 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?
Thursday, June 5th, 2008 AT 2:38 PM

1 Reply

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
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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Thursday, June 5th, 2008 AT 2:43 PM

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