The brakes have to be checked every time the wheels are taken off or when there is a suspicion of defect besides the recommended periods. Some signs that a brake system is defective are: the car veers towards one side on pressing brake pedal; brakes produce screeching and dragging noise during application; brake pedal travel is excessive; brake pedal pulsates on application; brake fluid leaks, usually onto the inside of the tire or wheel. For disc brakes inspection, loosen wheel lug nuts, raise vehicle and secure it with jackstands and then remove wheels. As seen through inspection holes each caliper contains two pads. Replace pads if their thickness is less than specified thickness. It is advisable to clean pads using a brake cleaner and re-measure them later on. And if the disc's thickness is smaller than minimum specified value, replace it. Before fitting wheels check out all damages in braking lines as well as hoses such as wear, deformation, crack, corrosion leakage deformations bends twists etc. To loosen drum on outside tap it twice before taking out drums and cleaning them up . Notice how thick lining material on front and rear shoes respectively is and change it corresponds to this figure if necessary. Wipe inside of drum clear any trace of fluid leakage from its surface at this point in time No cracks should be detected within drum's structure exactly near any scoring marks deep scratches nor "hard spots" which may require resurfacing anywhere at all Repeat this process for another wheel too In order to check booster of your brakes you can start an engine while holding down a break just for it move slightly downward By depressing a break pedal several times we want its travel distance not changing Turn off everything including engine for 30 seconds but do not allow your foot go free After about one minute of restarting an engine press hard more than 4 times releasing a break between each move until peddle would no longer be moving down If your brakes do not work as described the brake booster has failed. Pull up on a parking lever slowly while counting number of times such movement made until it could go no further This is correct if there are specified numbers of clicks Another method is to park the vehicle on a steep hill with the parking brake set and the transmission in Neutral If it does not hold the vehicle from rolling then adjust it.
