Poor return of the brake caliper may be caused by a variety of reasons, including but not limited to return spring failure, brake caliper piston jamming, rear axle bearing problems, contaminated or damaged brake pads, and brake oil pipe or brake shoe failures. These faults not only affect the normal operation of the brake system, but may also cause safety hazards.
Return spring failure: Long-term use or excessive force may cause the return spring to break or lose its elasticity, which is one of the common reasons why the brake caliper does not return. Solving this problem is relatively simple, just replace the brake pedal return spring.
Brake caliper piston jamming: The brake caliper clamps the brake disc when braking to achieve braking. If the brake caliper piston jams, the brake pedal will not return and the vehicle will have difficulty moving forward. At this time, the brake caliper needs to be replaced.
Rear axle bearing problems: Improper fixing or installation of the rear axle bearing, as well as wear, dryness or damage can cause the brake pad to be improperly positioned, which in turn causes the pedal to not return.
Contaminated or damaged brake pads: If the brake pad is contaminated by lubricating oil or brake fluid, or if it is worn, overheated or deformed, its performance will be affected. In these cases, the brake pads need to be replaced directly.
Failure of the brake oil pipe or brake shoe: Blockage or rupture of the brake oil pipe, as well as wear or improper adjustment of the brake shoe, may affect the normal operation of the brake. These problems require professional inspection and replacement of related parts.