ASE Maintenance and Light Repair (MLR) Certification Practice Test

Before removing a vehicle from the lift after installing new brake pads, it is essential for the technician to pump the brake pedal until it feels firm. This action ensures that the newly installed brake pads are properly seated against the rotors and that the brake system builds up pressure. When new pads are installed, there can be air gaps or a slight gap between the pads and the rotor, which can lead to a spongy brake feel. Pumping the brake pedal forces the calipers to push the pads against the rotors, effectively eliminating any gaps and providing a solid brake response when the vehicle is put back into operation.

Additionally, after new brake pads are installed, this process helps to ensure that the hydraulic system's pressure is adequately established, contributing to safe vehicle operation once the lift is lowered. It is crucial for the technician to perform this step for safety and proper functionality of the braking system.