* Lack of lubrication. The brake piston needs to be lubricated in order to move smoothly. If there is not enough lubrication, the piston can become stuck and difficult to rotate.
* Corrosion. The brake piston can corrode over time, which can make it difficult to rotate. Corrosion can be caused by moisture, salt, or other chemicals.
* Mechanical damage. The brake piston can be damaged by mechanical means, such as a blow from a hammer or being dropped. Mechanical damage can make the piston difficult to rotate.
* Incorrect installation. The brake piston may have been installed incorrectly, which can make it difficult to rotate. For example, the piston may not have been seated properly in the caliper, or the caliper may not have been properly tightened.
If you are having difficulty rotating the rear brake piston on your 2000 Maxima, it is important to identify the cause of the problem before attempting to fix it. If the problem is caused by a lack of lubrication, you can simply apply some lubricant to the piston. If the problem is caused by corrosion, you may need to clean the piston and caliper. If the problem is caused by mechanical damage, you may need to replace the piston. If the problem is caused by incorrect installation, you may need to reinstall the piston and caliper correctly.
