Hit the actuator w/WD40 or similar. Is it getting air or leak in the line? If you have the panel out it should be easy to see. If not there's an access on the right side for emergency opening of the gas door. If the lights are blinking its trying to activate the alarm system. The siren is a problem , that causes gremlins that are hard to find. Disconnect the siren an see if that makes the system function properly. The pump will push air without the engine running Just a few tips..