Mechanics

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

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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LeonardElledge
February 6, 2012.



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

Rasmataz
Feb 6, 2012.