The first step is to remove the old grease from anywhere on your brake parts you find it. From the inner surfaces of the caliper, from deep inside the sliding pins that let your brakes move ...

Brake caliper grease helps extend the life of your brakes by properly lubricating all of its components to avoid brake dust buildup, squeaking, and malfunction due to heavy wear and tear.

Other major causes are worn, loose, defective, missing or unlubricated brake mounting hardwarespecifically brake anti-rattle clips, caliper slide pins or ... a lack of brake grease, and ...

The slide pins were both free, and the caliper wasn’t seized ... t always apparent—until it is. Proper grease, proper seating, proper wear; better brake installation is always the sunnier ...

One likely cause for the noise, reports GM, is a worn lower brake caliper pin bushing. To make a proper diagnosis, take the vehicle on a road test to see if you can get the rattling noise to reappear.