Over worn-out brake shoes on the rear can often lead to squeaking. If the inner linings of the brake pads are worn down this can damage the brake rotor leading to squeaking. Brake pads should be checked and replaced as needed to avoid creating any damage to the brake itself.
2. Brake disc issues:
If the rear brake disc is damaged or warped due to excessive heat or physical impact it can cause the brakes to squeak.
3. Debris, rust or dirt:
If the rear brakes have been exposed to heavy rain, dirt, or snow, it could cause buildup on the brake shoes and discs. When the brakes are applied, this buildup can be crushed between the shoes and discs, creating a squeaking sound.
4. Low fluid level:
Brake fluid helps lubricate the moving parts of the brakes. If the fluid is low, the rear brake mechanisms can become dry, which could cause squeaking.
5. Faulty brake pad installation:
If brake shoes have not been installed correctly this could cause the pads to sit closer to the drum than they should. When the brakes are applied, the brake shoes will touch the drum, creating a squeaking sound.
6. Sticking brake components:
If any components of the brakes, such as the caliper or drum, become jammed or stuck this can cause the brakes to squeak.
If you hear a squeaking sound coming from your back brakes, it's important to have the vehicle inspected by a qualified mechanic. They will be able to diagnose the cause of the noise and recommend the best course of action.
