How to Change an Alternator on a Ford Ranger

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    Removing the Alternator

    • 1). Open the hood.

    • 2). Disconnect the ground cable from the negative battery terminal. Loosen the retaining bolt, using a wrench. Then pull the clamp off the terminal.

    • 3). Loosen, but do not remove the bolts that connect the alternator to the engine bracket, using a socket.

    • 4). Slide the alternator towards the engine.

    • 5). Pull the drive belt off the pulley.

    • 6). Label and disconnect the electrical leads on the back of the alternator, using masking tape and a marker.

    • 7). Unscrew the bolts that attach the alternator to the engine bracket, using a socket.

    • 8). Carefully lift the alternator away from the engine.

    Installing the Alternator

    • 1). Lower the alternator into position in the engine bracket.

    • 2). Screw in the bolts that connect the alternator to the engine bracket. Do not tighten.

    • 3). Connect the engine wiring harness to the alternator, by pushing the plastic electrical connectors into the back of the alternator.

    • 4). Slide the drive belt onto the alternator pulley.

    • 5). Slide the alternator away from the engine until the drive belt is tight.

    • 6). Tighten the mounting bolts, using a socket.

    • 7). Connect the ground cable to the negative battery terminal. Slide the clamp over the terminal. Then tighten the retaining bolt using a wrench.

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