How to Replace the Wiper Transmission on a 2008 Chevy HHR

Replacing the wiper transmission on a 2008 Chevy HHR might seem daunting‚ but with the right tools and a little patience‚ it’s a manageable task. This guide will walk you through the process step-by-step.

Tools You’ll Need⁚

• Phillips-head screwdriver
• 10mm socket wrench
• Torx T25 screwdriver
• New wiper transmission assembly
• Shop towels or rags
• Optional⁚ Plastic pry tool

Step-by-Step Guide⁚

1. Disconnect the Battery⁚

For safety‚ disconnect the negative (-) battery terminal to prevent electrical shocks.

2. Remove the Wiper Arms⁚

Locate the two wiper arms on the windshield. Using a Phillips-head screwdriver‚ loosen the nuts holding the arms in place. Once loose‚ carefully lift the arms off the splines. It’s a good idea to mark the position of the arms before removal for easier reinstallation.

3. Remove the Wiper Cowl⁚

The wiper cowl is the plastic cover that sits above the wiper blades. Use a Phillips-head screwdriver to remove the screws holding the cowl in place. You may need to use a plastic pry tool to gently lift the cowl off the windshield.

4. Access the Wiper Transmission⁚

With the cowl removed‚ you’ll see the wiper transmission assembly attached to the firewall. Locate the four 10mm bolts securing the transmission. Use a 10mm socket wrench to loosen and remove these bolts.

5. Disconnect the Wiring Harness⁚

There’s a wiring harness connected to the wiper transmission. Gently disconnect the harness by pressing the release clip and pulling it away from the transmission.

6. Remove the Old Transmission⁚

With the bolts and wiring harness removed‚ carefully pull the old transmission assembly out. Be careful not to damage any surrounding components.

7. Install the New Transmission⁚

Position the new wiper transmission assembly in the same location as the old one. Ensure it’s seated correctly and then reattach the four 10mm bolts. Tighten them securely.

8. Reconnect the Wiring Harness⁚

Carefully plug the wiring harness back into the new transmission. Make sure it’s securely connected.

9. Reinstall the Wiper Cowl⁚

Place the wiper cowl back over the transmission assembly. Secure it with the screws you removed earlier.

10. Reinstall the Wiper Arms⁚

Carefully align the wiper arms back onto their splines. Ensure they are in the same position as before you removed them. Tighten the nuts holding the arms in place using a Phillips-head screwdriver.

11. Connect the Battery⁚

Reconnect the negative (-) battery terminal.

12. Test the Wipers⁚

Turn on the ignition and test the wipers. They should operate smoothly and without any issues.

Tips⁚

• If you’re unsure about any step‚ it’s best to consult a mechanic or an automotive repair manual.
• Be careful not to damage the wiring harness or any other components while working on the wiper transmission.
• Use a torque wrench to tighten the bolts to the correct specifications.

By following these steps‚ you can successfully replace the wiper transmission on your 2008 Chevy HHR.