2004 Ford F250

2004 FORD F-250
134,000 MILES • V8 • 4WD • AUTOMATIC
Avatar
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 5:15 PM
Advertisement
Avatar
BMRFIXIT
  • ✓ASE Certified Mechanic
  • 19,053 POSTS
  • ASE Certified Mechanic
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 26, 2008 at 6:45 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.