A5 Brakes (ASE Style Questions #5)

All of the following can cause disc brake squeal EXCEPT:

• Loose or missing anti-rattle springs

• Grease on the linings

• Glazed linings

• Dirt embedded in the linings

Technician A says that when rebuilding a caliper with a stroking seal, the condition of the caliper bore surface is critical. Technician B says that when rebuilding a caliper with a fixed seal, the condition of the piston surface is the most important consideration. Who is right?

• Technician A only

• Technician B only

• Both A and B

• Neither A nor B

All of the following can cause a vehicle to pull to one side when the brakes are applied EXCEPT:

• Seized caliper piston

• Worn strut rod

• Blocked master cylinder compensating port

• Brake fluid soaked linings

A customer vehicle equipped with an Electronically Assisted braking system has a braking concern and warning light illuminated on the instrument panel. What steps should the technician take in troubleshooting the concern?

• Perform a full vehicle DTC scan

• Check for applicable Technical Service Bulletins

• Read up the Theory of Operation for the system

• All of the above

When discussing wheel bearings, all of the following statements are true EXCEPT:

• Tapered wheel bearings are most commonly used on drive axles

• Sealed ball bearings are not adjustable

• A new grease seal should be installed when bearings are repacked

• The races on tapered wheel bearings cannot be interchanged

All of the following could cause the parking brake to not hold a vehicle on a grade EXCEPT:

• Seized cables

• Excessive rear brake shoe-to-drum clearance

• Seized wheel cylinder

• Broken parking brake linkage

To determine the serviceability of a brake drum, all of the following should be checked EXCEPT:

• Diameter

• Minimum thickness

• Out-of-roundness

• Taper wear

A vehicle's brake pedal is pumped rapidly 20 times and then held down. The master cylinder cover is then removed and when the pedal is released, a geyser is seen coming from the reservoir. Technician A says that this indicates air is trapped in the system. Technician B says that this means that fluid is being forced out of the cylinder bore through the compensating ports and is normal master cylinder operation. Who is right?

• Technician A only

• Technician B only

• Both A and B

• Neither A nor B

Technician A says that RWAL ABS systems must be diagnosed using a scan tool. Technician B says that the ABS warning light will only come on when there is a fault in the system. Who is right?

• Technician A only

• Technician B only

• Both A and B

• Neither A nor B

Technician A says that any imperfection found in a phenolic caliper piston warrants replacement. Technician B says that a phenolic caliper piston should be protected with a block of wood when installing it into the caliper bore with a C-clamp. Who is right?

• Technician A only

• Technician B only

• Both A and B

• Neither A nor B