HOW DO I TEST INDIVIDUAL COIL PACKS ON A 2003 F-150, 4.6LITER TRITON V-8.

  • Tiny
  • LeonardElledge
  • 2003 FORD F-150
  • 210,000 MILES

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.

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Monday, February 6th, 2012 AT 6:17 PM

1 Reply

  • Tiny
  • Rasmataz
  • MEMBER

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

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Monday, February 6th, 2012 AT 6:32 PM

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