For 1990-2009 cars only
- Clamp a piece of 1/2 inch ID rubber hose over the fluid inlet end of the solenoid.
- Connect a wire from one of the solenoid terminals to the negative terminal (ground) of the battery.
- Apply compressed air to the rubber hose. Do not use air pressure in excess of 120 psi. Excessive pressure will not allow the solenoid ball check valve to seat properly.
- Connect a wire from the other solenoid terminal to the positive terminal (12 volts) of the battery.
- Observe air flow through the solenoid. Replace the solenoid if there is an air leak when the solenoid is energized.
