1. Loose Shock Mount:
- Check the upper shock mount and make sure it's tight. If it's loose, tighten it according to the specified torque.
2. Worn Anti-Roll Bar:
- Inspect the anti-roll bar bushings and links for wear or damage. Replace any worn components.
3. Brake Components:
- Check the brake pads and rotors for wear. If they're worn, replace them. Make sure the brake caliper guide pins are well-lubricated.
4. Rear Suspension Control Arm:
- The control arm bushings may have deteriorated or cracked, causing the squeak. Inspect the bushings and replace if necessary.
5. Exhaust:
- Examine the exhaust system for any loose or damaged components. Ensure all hangers and brackets are secure.
6. Subframe Mounting Bolts:
- Check the subframe mounting bolts for proper tightness. Loose bolts can lead to unwanted noises.
7. Sway Bar End Links:
- Ensure the sway bar end links are secure and have no excessive play. Replace worn end links.
8. Trunk Area:
- Make sure nothing is loose inside the trunk or cargo area that could be vibrating and causing the squeak.
9. Plastic Trim Panels:
- Verify that all plastic trim panels in the rear wheel well area are properly secured. Reattach or replace loose panels.
10. Rubber Seals:
- Over time, rubber seals can become old and brittle, causing squeaks due to friction. Examine all rubber seals in the rear area and replace any that are cracked or worn.
11. Driveshaft Flex Coupling:
- On some Mazda Millenia models, a worn flex coupling on the driveshaft can create a squeaking noise. Have it inspected by a qualified mechanic if necessary.
Remember, if the problem persists or if you're uncomfortable performing these tasks, it's recommended to have the vehicle inspected by a certified mechanic who can accurately diagnose and fix the source of the squeak.
