2. Remove the intake air duct resonator from the throttle body (see chapter 4).
3. Disconnect the wiring connector from the ignition coil (see illustration).
7.3. Remove the retainer and disconnect the connector...
4. Unscrew the mounting bolt and remove the ignition coil from the valve cover (see illustrations).
7.4a....unscrew the mounting bolt...
7.4b.... and pull the ignition coil out of the valve cover
5. Inspect the coil seals for cracks or other damage. Replace seals if necessary (see illustration). Installation is carried out in the reverse order of removal. Tighten the mounting bolt to the specified torque.
7.5. If necessary, install new seal(s) on ignition coil(s
(The article was reprinted from the website ChevyMan)