Pinpoint Test JC: Secondary Ignition (Coil Pack): Introduction

WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2015 Lincoln Navigator, 2015 Lincoln MKZ, 2015 Lincoln MKX, 2015 Lincoln MKT, and 2015 Lincoln MKS. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: There is additional information available on this procedure. Copy and paste the following URL into your internet browser: mms://multimedia.ford.com/seopts/Service_Tips/ignition3.wmv.

This pinpoint test is intended to diagnose the following:

spark plugs (12405)
spark plug wires (12280, 12281)