My 1999 Ford Expedition os running very rough what could be the cause

Tiny
DUTCHRON
  • 1999 FORD EXPEDITION
  • 236,400 MILES

Engine running very rough

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Sunday, May 6th, 2012 AT 2:37 AM

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Tiny
JACOBANDNICKOLAS
  • EXPERT
  • 68,362 POSTS

Check for tune up, check fuel pressure check engine compression.

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Sunday, May 6th, 2012 AT 3:02 AM
Tiny
DJCL
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  • 786 POSTS

Spark plugs and coils are common to do this on this truck. If you have a scanner check codes see which cylinders are counting miss fires and swap coiles to see if the miss has moved

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Sunday, May 6th, 2012 AT 6:59 AM

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