Town Car V8-302 5.0L (1987)
Fuel Pump Inertia Switch: Description and Operation
Fig. 17 Inertia switch
This switch, Fig. 17, is used on all vehicles with electric fuel pumps. This switch shuts off the fuel pump in the event of an accident. The switch
consists of a steel ball held in place by a magnet. Upon sharp impact, the ball breaks loose from the magnet, rolls up a conical ramp, and strikes a target
plate that opens the switch electrical contacts and shuts off the fuel pump. Once the switch is open, it must be manually reset before starting the vehicle.
