Title: Identify components of the brake power assist system (vacuum/hydraulic/electric).
Course: Automotive Technology II (MLR 3-Year Program) (20104-IIA) > Section: BRAKES: Power-Assist Units

Identification should include

- removing the vacuum supply hose to booster and checking with a gauge
- testing the brake pedal by depleting the reserve
- restarting the engine.

Process/Skill Questions:

- How should the vacuum supply be checked?
- How much vacuum is enough?
- What causes a hard brake pedal?