Replacing the electric power steering (EPS) motor in a 2006 Chevy Malibu is a task that can be tackled by those with basic mechanical skills. This guide will provide you with a step-by-step process to ensure a successful replacement.

Understanding the Need for Replacement

The electric power steering system in your Malibu may show signs of failure, such as difficulty in steering or a complete loss of power assist. If you experience these symptoms, replacing the EPS motor is often necessary.

Tools and Materials Required

Before starting the replacement, gather the following tools and materials:

  • Ratchet and extension
  • 7mm and 8mm sockets
  • E8 and E12 sockets
  • Screwdrivers (flathead and Phillips)
  • Replacement electric power steering motor
  • Safety gloves and goggles

Step-by-Step Replacement Process

1. Disconnect the Battery

- Start by disconnecting the negative terminal of the battery to prevent any electrical shorts.

2. Remove Lower Steering Column Cover

- Use a ratchet with a 7mm socket to remove screws securing the lower panel below the steering wheel. Gently detach the panel to access the EPS motor.

3. Locate the EPS Motor

- The EPS motor is located on the steering column. You will need to disconnect several wiring harnesses connected to it.

4. Remove the EPS Motor

- Using an E8 socket, remove the bolts securing the EPS motor. Carefully pull the motor out while ensuring no wires are damaged during this process.

5. Install the New EPS Motor

- Align and insert the new EPS motor into place. Secure it using the bolts you previously removed, ensuring they are tightened properly.

6. Reconnect Wiring Harnesses

- Reconnect all wiring harnesses to the new motor, ensuring they are securely attached.

7. Reassemble Lower Steering Column Cover

- Reattach the lower panel using the screws you removed earlier.

8. Reconnect Battery

- Finally, reconnect the negative terminal of your battery.

Calibration After Installation

After replacing the EPS motor, calibration is critical for proper function:

1. Center the Steering Wheel

- Turn on your vehicle's ignition (without starting) and ensure that your steering wheel is centered.

2. Use a Scan Tool

- Connect a scan tool to perform both Steering Position Sensor Calibration and Torque Sensor Calibration. Follow prompts on your scan tool to complete these calibrations.

3. Clear Any Diagnostic Trouble Codes (DTCs)

- Use your scan tool to clear any DTCs related to the EPS system.

Important Considerations

  • Ensure that all connections are secure before starting your vehicle.
  • If you are unfamiliar with working on vehicles, consider consulting a professional mechanic.
  • Always refer to your vehicle’s service manual for specific torque specifications and additional instructions.

FAQs About Electric Power Steering Replacement

    • What symptoms indicate a failing EPS motor?
      Common symptoms include difficulty steering, unresponsive steering, or unusual noises when turning.
    • Do I need special tools for this replacement?
      Basic hand tools like sockets and screwdrivers are typically sufficient for this job.
    • Is calibration necessary after replacing the EPS motor?
      Yes, calibration is crucial to ensure proper operation of your power steering system.