How do I test individual coil packs on a 2003 F-150, 4.6liter Triton V-8.

2003 FORD F-150
210,000 MILES
Avatar
LEONARDELLEDGE
  • MEMBER
  • 1 POST
I got this truck and was running rough. Previous owner told me the coil packs are going bad on it. I changed the plugs and put the dielectric grease on the spring where connects to coil pack and to pug. No difference. I have not gotten codes pulled yet. Just getting started in the diagnostics on this.
Feb 6, 2012 at 6:17 PM
Advertisement
Avatar
RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Try scanning the computer for code/s-You test the coil just the way you test the cylindrical coil's primary and secondary winding resistances
Feb 6, 2012 at 6:32 PM
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.