ignition systems Archives - Tomorrows Technician
VIDEO: Measuring Dwell In The Ignition System

A coil takes a finite amount of time to build up this charge. This is the dwell time, normally defined as the camshaft’s degree of rotation, during which the voltage flows through and charges the primary side of the coil.

Ignition System: MIL On, Ignition Coil DTCs Set

Some 2006 Zephyr; 2006-2008 Fusion and Milan; 2007-2008 MKZ, Edge, and MKX; and 2008 Taurus, Taurus X and Sable vehicles may exhibit a malfunction indicator lamp (MIL) on with diagnostic trouble codes P0351, P0352, P0353, P0354, P0355 and/or P0356 present in the Powertrain Control Module (PCM) and with one or more damaged ignition coil-on-plug(s).

A8 Spark Timing Technical Tip Clip

Section two of the ASE A8 task list is where you find ignition systems. In this video tip clip with instructor Dave Hobbs we’re going to do some cylinder balance testing, which will give us an idea if there is a misfire, and if so, which cylinder it is. And that oftentimes goes hand in hand with ignition diagnosis.