2005 Ford F-150 misfire?

Tiny
B STUART
  • MEMBER
  • 2005 FORD F-150
  • V8
  • 2WD
  • AUTOMATIC
  • 55,000 MILES
I have a 2005 F150 Lariat with a 5.4L V-8. It runs great most of the time. I have a problem that just started, when traveling at highway speeds and I push down on the accelerator quickly my truck downshifts and begins to misfire badly. If I ease up it runs correctly. The problem is so bad that I can barely gain speed.
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Tuesday, April 15th, 2008 AT 1:55 PM

1 Reply

Tiny
JOE6770
  • MEMBER
Check your plugs and cop boots. You may have a miss fire
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Saturday, April 19th, 2008 AT 10:56 AM

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