Title: Inspect and test hydraulically assisted power brake system for leaks and proper operation; determine needed action.
Course: Automotive Technology III (20104-III) > Section: Brakes: Power-Assist Units Diagnosis and Repair

Inspection should include

- power steering system
- hoses
- hydroboost system.

ASE Education Foundation
2017 Automobile Service Technology (AST) Level
V. Brakes
E. Power-Assist Units Diagnosis and Repair
Task 4

Process/Skill Questions:

- What is the operation of a hydroboost system?
- What part of the hydroboost unit acts as a reserve?
- What might cause a hard brake pedal?