Q: How to replace a blown fuse link in a wiring system?
A: Fuse links are used in circuits without standard fuses, providing overload protection. They're smaller than the circuit wire and color-coded: green (14 gauge), orange (16), yellow (17), red (18), and blue (20). These links are non-repairable and must be replaced with an identical new one. To replace, disconnect the battery ground and the damaged link from the starter relay. Cut and discard the damaged link, strip 1/2 inch insulation from the circuit wire, and crimp in a suitable new link. Solder each end of the new link, insulate with electrical tape, and reconnect everything. Test the circuit afterwards for proper operation.
Q: What protects the electrical circuits of a Mercury Zephyr?
A: Cars' electrical circuits are safeguarded by fuses, circuit breakers, and fusible links, located under the dashboard. Each fuse protects a specific circuit, identified on the panel. If an electrical component fails, first check its fuse, identifiable by a broken metal element if blown. Use plastic fuse pullers for removal and installation, and ensure the correct amperage rating for each circuit. Bypassing a fuse can damage the system. If a new fuse fails immediately, locate and fix the cause, typically a short circuit, before replacement.