How to Replace the Ignition Coil in a Ford Explorer

The ignition coil in your Ford Explorer converts the low-voltage of the battery into the high-voltage needed to trigger the spark plugs. Replacing a nonfunctional Explorer ignition coil prevents oil leaks and keeps your Ford Explorer in top condition.

Instructions

1

Disconnect the cable that connects to the negative terminal of the battery. This prevents accidental electrocution as you work on your Ford Explorer.

2

Detach the electrical connector from the ignition coil. To do this, release the locking tang on top of the connector using a small, flathead screwdriver. Then pull off the connector.

3

Remove the noise suppressor from the front of the ignition coil. Unplug the electrical connector and remove the noise suppressor mounting bolt. You may want to consider using a torque wrench to improve accuracy while you replace your Explorer ignition coil.

4

Write down the numbering on the spark plug wires as they correspond to each coil high-tension terminal. You may want to wrap tape around each wire with the number to prevent mix-ups when you install the new ignition coil in your Ford Explorer.

5

Disengage the spark plug wire connectors from the ignition coil. You need to squeeze the two locking tabs on the opposite sides of each connector and pull up. Then, undo the mounting bolts that secure the ignition coil. Remove the old ignition coil and replace with the new ignition coil.

6

Coat the inside of each plug wire connector with silicone dielectric compound.

7

Reassemble the ignition coil by reversing the above steps.