CYLINDER 4 MISFIRE P0304

  • Tiny
  • GRIZZ77
  • 2003 Ford F-150
  • 111,000 miles

2003 F150 XLT 5.4L V8 - recurring cyl 4 misfire after 8 new coils, 8 new spark plugs, 1 new fuel injector on #4, compression test passed - any ideas?

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Thursday, June 14th, 2012 AT 2:00 AM

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  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,409 posts

Check to make sure the injector is getting power and working. Check to make sure the wiring to the coil is good and you are getting spark. My guess is that one of those is missing.

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Thursday, June 14th, 2012 AT 3:49 AM

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