How do you replace the ignition coil in a 94 Buick Roadmaster?

To replace the ignition coil in a 1994 Buick Roadmaster, first disconnect the negative battery terminal to ensure safety. Remove the engine cover if necessary, then locate the ignition coil, which is usually mounted near the engine. Disconnect the electrical connector and unscrew the coil from its mount, then replace it with the new coil, reattach the connector, and restore any removed components. Finally, reconnect the battery terminal and start the engine to ensure proper installation.