How to Replace a Fusible Link in an '87 Mustang 5.0

1). Disconnect the ground battery cable (black) using a wrench.
2). Remove any insulation tape and tubing from the section of the harness with the fusible links you need to repair.
3). Locate the feeding wire connected to the three fusible links leading to the three different circuits.
4). Cut the blown fusible link close to the weld at the feeding wire, cut the other end at the splice and throw away the link. Use a pair of diagonal cutting pliers.
5). Cut the remaining two good fusible links close to the weld at the feeding wire using the pair of diagonal cutting pliers.
6). Strip 1/2-inch (13 mm) of insulation from the two good fusible links at the end you separated from the feeding wire using a wire stripper.
7). Strip 1/2-inch (13 mm) of insulation from one end of the new fusible link you want to install using the wire stripper.
8). Insert the stripped ends of the two good fusible links and the new fusible link into one side of a non-insulated butt connector of the appropriate size.
9). Crimp the all three wires firmly together with a crimp tool.
10

Cut the piece of weld from the feed wire using the pair of diagonal cutting pliers.
11

Strip 1/2-inch (13 mm) of insulation from the feeding wire using the wire stripper.
12

Insert the end of stripped feed wire into the other end of the non-insulated butt connector and crimp that end of the butt connector with the crimp tool.
13

Strip 1/2-inch (13 mm) of insulation from the other end of the new fusible link using the wire stripper.
14

Cut the splice from the wire you need to attach the new fusible link to using the pair of diagonal cutting pliers.
15

Strip 1/2-inch (13 mm) of insulation from the end of the wire you need to attach the new fusible link to using the wire stripper.
16

Insert the stripped end of the new fusible-link into one side of a non-insulated butt connector of the appropriate size and crimp that side of the butt connector with the crimp tool.
17

Insert the stripped end of the wire you need to connect into the other end of the non-insulated butt connector and crimp that side of the butt connector with the crimp tool.
18

Solder the connections at each end of both non-insulated butt connectors using a soldering gun and rosin core solder with 60 percent tin and 40 percent lead.
19

Insulate each of the butt connectors with electrical tape and wrap a piece of wire harness insulation tubing around the section of the circuit with the fusible links, if necessary.
20

Connect the ground battery cable (black) using the wrench.