2004 Ford F250

2004 FORD F-250
134,000 MILES • V8 • 4WD • AUTOMATIC
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GRASSMAN34
  • MEMBER
  • 1 POST
Had a miss,replaced plugs.still missed.computer says #2,#5,#7 cyls missfire,3 coils replaced.comp says 2 & 5 still dead. replaced both injectors.no change still misses.
p.s. i checked for vac leaks in plenum & hoses.
any suggestions?
May 23, 2008 at 10:15 AM
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BMRFIXIT
  • ✓Experienced Mechanic
  • 19,053 POSTS
check as follow
check for compression to eliminate any engine internal issues
check injector pulse on said cylinders to eliminate any wiring issues
remove and check if coils are firing also to eliminate any wiring issues
May 25, 2008 at 11:45 PM
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