Drum Brakes (Group 5)
What is the housing of a drum brake system called ?
What is the drum.
What is the most common cause of grinding sounds?
What are worn brake pads?
needs to be done before installing a master cylinder
bench bleeding
What part of the drum brake system pushes outwards and uses friction to stop ?
What are Brake shoes.
A customer complains their steering wheel is vibrating at highway speeds. What are two possible causes?
What is brake rotor parallelism or runout?
clunking noise coming from the brake
loose caliper
What uses braking fluid pressure to push the braking shoes apart ?
What is the Wheel Cylinder.
Tech A says the ABS system sometimes needs a scan tool to diagnose electrical problems, Tech B says the ABS system needs the scan tool to detect a faulty wheel speed sensor, who is correct?
What is both A and B
vacuum is air pressure that is lighter than this pressure
atmospheric pressure
What adjusts braking shoes during regular driving to maintain proper pressure and preformance ?
What is a self adjuster .
What's the name of the drum brake shoe that has better braking efficiency and typically will wear faster than the other?
What is leading brake shoe
making the brake pedal hard to press
brake booster failure
What components secures the brake shoes to the backing plate ?
What are Hold-down Springs/Pins.
Tech A says when a brake pedal sinks to the floor, there's air in the system and Tech B says there's a leak in the master cylinder. Who is correct?
What is Tech B
causes the vehicle to pull while braking
sticking caliper