The ignition coil is contained in the distributor cap and connects through a center contact to the rotor.
The capacitor, if equipped, is part of the coil wire harness assembly. The capacitor is used only for radio noise suppression.
- Detach the wiring connectors at the distributor cap. If necessary, label the position of each wire prior to disconnecting it.
- Turn the four screws and remove the cap and coil assembly from the distributor lower housing.
- Inspect the interior and exterior of the cap for signs of tracking. If tracking is present, replace the cap.
- Connect an ohmmeter across the coil terminals, which are the outermost terminals located in the recessed boss of the cap.
- If the reading is not at 0, or nearly 0, replace the coil.
- Connect the test leads of an ohmmeter to the coil center contact, located in the center of the cap. Attach the other test lead to the center terminal of the 3-wire connector, located on the cap. Make sure to set the ohmmeter to the highest setting.
- If the reading is infinite, replace the ignition coil.
REMOVAL & INSTALLATION
- Disconnect the negative battery cable.
- Detach the wiring connectors at the distributor cap. Remove the cap from the distributor housing.
- Remove the coil cover attaching screws on the top of the cap. Remove the cover from the cap.
- Remove the ignition coil attaching screws and lift the coil with leads, from the cap.
- Inspect the cap for signs of carbon tracking on the inside of the cap, below the coil.
- Remove the ignition coil arc seal. Clean with soft cloth and inspect cap for defects, replace cap as required.