ASE A5 Brakes - p4

A customer complains of a brake pulsation. This could be caused by:

• Air in the hydraulic system

• worn brake retracting springs

• an open ABS wheel speed sensor

• warped front brake rotors

When adjusting rear drum parking brakes:

• The order of adjustment is not important

• The parking brake cable should be adjusted before the service brakes are adjusted

• The service brakes should be adjusted before the parking cable brake is adjusted

• The master cylinder push rod should be adjusted before the service brakes are adjusted

A vehicle has a snapping noise when the brake pedal is released coming from the right rear drum. Which of these could be the cause?

• Air in a wheel cylinder

• Worn-out brake shoes

• a mis-machined drum braking surface

• Improperly adjusted parking brake

A vehicle with hydro-boost brakes exhibits a hard brake pedal during turns only. Which of these could be the problem?

• Low brake fluid level

• low power steering fluid level

• Contaminated brake fluid

• Low transmission fluid

A vehicle makes a grinding noise from the left front wheel that increases with vehicle speed. Which of these procedures should be used to confirm a failed bearing?

• Turn the steering wheel left and right to check for play

• Grasp the tire at the top and bottom and check for play

• Grasp the axle shaft assembly and feel for play

• Remove the hub and clamp in a vise for inspection

Technician A says that the brake hose should be clamped off during caliper replacement to keep fluid from leaking. Technician B says that brake calipers should be supported with a hook during service to avoid hose damage. Who is right?

• Technician B

• Technician A

• Both

• Neither

A brake caliper is designed with opposed pistons. This design is known as:

• an integral caliper

• a floating caliper

• a pinned caliper

• a fixed caliper

A vehicle needs all brake pads and shoes replaced due to normal wear. Service history records indicate brake pads and shoes were recently replaced for the same reason. Which of these could be the cause?

• A brake pedal push rod out of adjustment

• A parking brake cable out of adjustment

• A seized wheel cylinder

• A seized brake caliper

A pulsation is felt through the brake pedal after the brake pads and rotors were replaced. During diagnosis, excessive brake rotor runout is measured. Which of these should the technician do next?

• Resurface the rotor on a bench lathe

• Measure the axle shaft runout

• Measure the hub flange runout

• Return the rotor as defective

A vehicle is being serviced because both the MIL and TCS/ABS lamps are illuminated and the TCS system disabled message appears in the instrument panel. The technician can find no mechanical faults in the TCS/ABS system. Which of these could be the cause?

• A failed brake light switch

• There is a fault with a wheel speed sensor

• The ABS/TCS controller needing reprogramming

• a failed throttle actuator