Ignition Control Module (HEI Magnetic)
WARNING: This page is about a different car, the 1995 Cadillac Seville and 1995 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
4.9L is equipped with a HEI magnetic ignition system. The ignition control module is located within the distributor. Removal of distributor is not necessary for ignition control module replacement.