How to Locate the Ignition Module on a 93 Ford Thunderbird

The ignition control module on a 1993 Ford Thunderbird is designed to supply spark to the distributor through the ignition coil. The ignition control module also helps calculate and control the duration of the spark. This module is constructed from a combination of ceramic and copper output drivers mounted on a metal base plate, secured inside a plastic housing. When the ignition control module fails, the engine may not start or may exhibit poor performance. Replacement ignition control modules are available from most auto parts stores.

Instructions

3.8- and 5.0-Liter Engines

1

Apply the parking brake, turn off the engine and open the hood. Disconnect the negative battery terminal with a battery terminal wrench.

2

Look down at the leading edge of the upper radiator support. Follow this edge all the way to the left corner of the engine where it meets the fender. The ignition control module is mounted to the edge of the upper radiator support and secured with one bolt.

3

Disconnect the ignition control modules electrical connector by pushing on the connector where it says PUSH. Remove the heatsink brackets retaining screw with a ratchet and metric socket. Remove the ignition control module from the vehicle. Remove the ignition control modules retaining screws and separate the module from the steel heatsink.

4

Clean both of the mating surfaces and apply dielectric grease to the base of the ignition control module. Set the module on the heatsink. Reinstall and tighten the retaining screws to 15 to 35 inch-pounds. Align the heatsink bracket with its mounting holes and reinstall the retaining screw. Reconnect the ignition control modules electrical connector.

5

Reconnect the negative battery terminal. Start the engine and verify that it operates properly.

3.8-liter Supercharged Engine

6

Apply the parking brake, turn off the engine, and open the hood. Disconnect the negative battery terminal with a battery terminal wrench.

7

Stand in front of the engine facing the firewall and look near the top of the serpentine belt assembly. The ignition control module is mounted on the top of a pedestal, directly above the belt assembly.

8

Disconnect both of the electrical connectors from the ignition control module by depressing the tabs marked PUSH. Remove the ignition control module retaining screws with a ratchet and metric socket and remove the module from the vehicle.

9

Coat the bottom of the new module with a light film of dielectric grease. Set the ignition control module in position and reinstall the mounting screws. Tighten them to 22 inch-pounds using a torque wrench. Reconnect both of the electrical connectors and reconnect the negative battery terminal. Start the engine and confirm that it operates properly.