Chevrolet Silverado 2500 (2015 - 2019) - Replace the alternator

Introduction

This tutorial provides a step-by-step guide on how to replace the alternator in a Chevrolet Silverado 2500 from 2015 to 2019. Whether you're experiencing electrical issues or simply want to perform preventive maintenance, this guide will help you complete the task efficiently and safely.

Step 1: Prepare the Vehicle

• Open the Hood

  • Locate the hood release lever under the steering column and pull it.
  • Raise the hood and secure it with the safety latch.

• Disconnect the Battery

  • Loosen the cable bolt from the negative battery terminal using an appropriate tool.
  • Disconnect the negative battery cable and position it aside to avoid accidental reconnection.

Step 2: Remove the Old Alternator

• Access the Alternator

  • Peel back the protective cover over the alternator's output cable.
  • Unscrew the cable securing nut and detach the output cable from the alternator.

• Disconnect Electrical Connections

  • Disconnect the electrical connector attached to the alternator.

• Remove Mounting Bolts

  • Locate and remove the alternator mounting bolts. Keep these bolts in a safe place for reinstallation.

• Free the Alternator

  • Gently pry up the alternator to free it from its mounting bracket.
  • Tap the bushings on the alternator mounting bracket forward slightly, which will make the installation of the new alternator easier.

Step 3: Install the New Alternator

• Position the Alternator

  • Place the new alternator onto the mounting bracket.

• Secure the Alternator

  • Install the alternator mounting bolts and tighten them to the specified torque setting. Refer to your vehicle manual for the correct torque specifications.

• Reconnect Electrical Connections

  • Reconnect the electrical connector to the alternator.
  • Attach the output cable onto the alternator terminal stud. Screw on the securing nut and tighten it securely.

Step 4: Reconnect the Battery

• Final Steps
  • Push the protective cover back onto the terminal.
  • Reconnect the negative battery cable to the battery terminal and tighten the cable bolt securely.

Conclusion

Replacing the alternator in your Chevrolet Silverado 2500 is a manageable task that can save you time and money. Always ensure to follow safety protocols, such as disconnecting the battery before starting any electrical work. With the new alternator installed, you can enjoy reliable vehicle performance. If you're interested in more maintenance tips or detailed guides, consider checking out the full Haynes manual for your vehicle model.