2003 Ford Excursion Acceleration and Sputtering

2003 FORD EXCURSION
90,441 MILES • V8 • 2WD • AUTOMATIC
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NARA0606
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  • 1 POST
My excursion starts sputtering and shaking when accelerating, especially when I go between 40-55 miles per hour.
what could be the problem?

nara
Apr 29, 2009 at 1:21 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,236 POSTS
Has the check engine light come on? Also, have you had the fuel pressure tested?
Jun 20, 2009 at 3:02 PM
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CASHWORTH
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  • 4 POSTS
One (or more) of your Coil Over Plugs, is bad. Very common on the EX's. Their about $90 a piece. you'll want to take it to a shop though, they have the tooling to test which one it is. Tell them to look at the COP's as it's a common problem. Has happened to me three times. I've replaced 5 already on my V-10.
Mar 20, 2010 at 11:01 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,236 POSTS
Cashworth can be right. THat is why I asked about the check engine light. A misfire should set the engine light on your engine and identify which one cylender is having the problems.
Mar 20, 2010 at 5:48 PM
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