Question about 1998 Ford Expedition
Coil pack voltage may be good but coil may not be putting out voltage check with spark checker.also fuel injector may be bad if all good do compresson test on cyl
Posted on May 07, 2014
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Posted on Jan 02, 2017
SOURCE: miss firing
could be a wire crossed, or it's out of time. since you used motorcraft plugs, did you set them properly to the correct gap? replacing plugs without gapping them can cause the sluggishness, out of time can cause the mis-fires and rough running.
Posted on Nov 29, 2008
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