HOW DO I TEST INDIVIDUAL COIL PACKS ON A , 4.6LITER TRITON V-8.
2003 Ford F-150
February, 6, 2012 AT 6:17 PM
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.