How to test lincoln mark viii coil?

To test the coil on a Lincoln Mark VIII, first ensure the ignition is off and disconnect the negative battery terminal. Using a multimeter, set it to the ohms setting and measure the resistance across the primary terminals of the coil; it should typically be between 0.4 to 2 ohms. For the secondary terminals, you should see a resistance of around 6,000 to 12,000 ohms. If the readings are outside these ranges, the coil may be faulty and should be replaced.