* Worn or damaged brake pads: If the brake pads are worn or damaged, they may not be able to properly grip the rotors, which can cause them to make a popping noise when the brakes are released.
* Damaged or loose suspension components: If the suspension components in the rear of the car are damaged or loose, they can cause the rear end to make a popping sound when the brakes are released. This is because the suspension components are responsible for keeping the wheels properly aligned and in contact with the road, and if they are damaged or loose, they can allow the wheels to move around and make a popping sound.
* Damaged or loose transmission components: If the transmission components in the rear of the car are damaged or loose, they can also cause the rear end to make a popping sound when the brakes are released. This is because the transmission components are responsible for transferring power from the engine to the wheels, and if they are damaged or loose, they can cause the wheels to move around and make a popping sound.
If you hear a popping sound coming from the rear end of your car after you release the brakes, it is important to have the car inspected by a qualified mechanic to determine the cause of the sound and have it repaired if necessary.