Distributor Solenoid Valve

1. Start engine and allow to idle.

2. Separate connector at distributor solenoid valve and apply battery voltage to the two terminals to energize the solenoid.

3. Disconnect vacuum sensing tube from distributor solenoid valve at distributor vacuum advance.

4. Disconnect battery power from solenoid. Solenoid is functioning properly if vacuum is drawn into vacuum sensing tube when battery is disconnected.