Operation CHARM: Car repair manuals for everyone.

Spark Test

1. Disconnect the ignition coil lead from the distributor.




2. Hold it with insulated pliers approx. 5-10 mm (0.20-0.39 in) from a ground.
3. Crank the engine and verify that a strong blue spark is visible.




4. If there is no spark, check for voltage at the positive (+) terminal of the ignition coil with the ignition switch at ON position.

Voltage: Battery positive voltage

5. If there is no voltage, check the main fuse, ignition switch, and wiring harness.