Title: Diagnose poor stopping, noise, vibration, pulling, grabbing, dragging, or pulsation concerns; determine needed action.
Course: Automotive Technology III (20104-III) > Section: Brakes: Disc Brake Diagnosis and Repair

Diagnosis should include checking for

- warping
- thickness variation
- scoring
- heat
- hot spots
- cracks
- frozen or binding caliper pistons or slides.

Diagnosis should also include replacing or repairing, as necessary.

ASE Education Foundation
2017 Automobile Service Technology (AST) Level
V. Brakes
D. Disc Brake Diagnosis and Repair
Task 1

Process/Skill Questions:

- What is pedal pulsation?
- What are possible causes of pulling while braking?
- What are possible causes of dragging brakes?