In this case, even without any thickness variation, the rotor will wobble between the pads and cause brake pedal pulsation. GM recognized this problem several years ago and approved the use of a product called Brake Align, which is a selection of shims that fit between the hub and rotor to correct lateral rotor runout. A problem with the hydraulic system, parking brake is still on. True or False, The residual pressure check When the brake fluid is changed, When repairs are done to the brake hydraulic system. Technician A says the parking brake is controlled by a leaver. Technician B says a pedal may be use.
— Every motor vehicle manufactured or assembled after January 1, 1972, and used to tow a trailer, semitrailer, or pole trailer equipped with brakes, shall be equipped with means for providing that in case of breakaway of the towed vehicle, the towing vehicle will be capable of being stopped by the use of its service brakes.