Repair 7

How to Replace the Injector in an 89 Jeep

Chrysler manufactures a number of off-road vehicles under its Jeep marque, with the Wrangler being the most popular of these models. The 1989 Jeep Wrangler represents the first generation of the Jeep Wrangler, which was produced from 1987 to 1996. These vehicles were available with several different engines, all of which used fuel injection. The fuel injectors in a 1989 Jeep deliver fuel and air to the engine and are located on top of the engine.

Instructions

1

Disconnect the negative battery cable with the socket wrench. This will prevent the battery from producing sparks while you replace the fuel injector. Remove the air cleaner and its hose from the vehicle as an assembly. Remove the bonnets from the throttle body with a socket wrench.

2

Press the tabs on the wire for the fuel injector while pulling the wire up to detach it from the fuel injector. Disconnect the screws for the retainer clip on the fuel injector with a socket wrench. Remove the retainer clip from the fuel injector.

3

Grab the center collar of the fuel injector with a pair of small pliers. Remove the fuel injector by lifting and rocking the collar gently with the pliers without twisting the fuel injector. Discard both O-rings and the centering ring for the fuel injector.

4

Lubricate the new O-rings for the fuel injector with transmission fluid. Install them into the bore of the fuel injector and place the new centering ring on top of the upper O-ring. Install the fuel injector and attach the retaining clip. Fasten the screws for the retainer clip with a socket wrench.

5

Attach the electrical connector for the fuel injector and install the bonnets with a socket wrench. Install the air cleaner assembly and connect the cable for the batterys negative terminal.