Pinpoint Test JB: Secondary Ignition (COP): Introduction
WARNING: This page does not describe the selected car, but rather 30 other vehicles, including the 2004 Mercury Sable, 2004 Mercury Mountaineer, 2004 Mercury Monterey, 2004 Mercury Marauder, and 2004 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
This pinpoint test is intended to diagnose the following:
- Spark plugs (12405).
Secondary side of the coil .
CAUTION:
A malfunctioning ignition system may cause high catalyst temperatures. Check components next to the catalyst and muffler for heat damage.
| Vehicle | Firing Order for Coil On Plug Applications |
|---|---|
| BASE, 4 -cylinder applications | 1 3 4 2 |
| LS, 3.0L | 1 4 2 5 3 6 |
| LS8, Thunderbird | 1 5 4 2 6 3 7 8 |
| BASE, 8 -cylinder applications | 1 3 7 2 6 5 4 8 |
| BASE, 10-cylinder applications | 1 6 5 10 2 7 3 8 4 9 |