There are a few different types of ignition systems a manufacturer can choose to start a vehicle. On the Lincoln Navigator, expect to find a distributorless ignition system (DIS). With this system, an ignition coil module converts the low voltage from the battery into a higher voltage to spark the spark plugs. Each module typically contains three ignition coils.
Take precautions to avoid an accident. This includes disconnecting the ground cable from the battery and engaging the emergency brake. For added safety, isolate the ground cable to prevent contact.
Locate the ignition coil module. Typically, you can find it near the intake manifold. The module has an ignition coil cover to protect it.
Remove the Navigator ignition coil cover. You may need to use a small wrench or a socket set to undo the bolts that secure the cover.
Follow the electrical connector to the ignition coil. You need to remove the electrical connector where it connects to the ignition coil.
Twist the ignition coil to loosen the seal. Pull upward and remove the ignition coil from the module.
Install the new Navigator ignition coil. You may need to replace more than one ignition coil when you work with an ignition coil module.
Assemble the parts that you disassembled to remove the Navigator ignition coil. If you have a Torque wrench, use it to tighten the bolts on the ignition coil cover to 53 inch pounds (12 Nm).
