Technician A says a hydraulic brake booster is usually found on vehicles with diesel engines. Technician B says most passenger cars and light trucks use the hydro-boost system. Who is correct?

Question

Quizplus · Accepted Answer

Hydraulic brake boosters, also known as hydro-boost systems, are indeed more commonly found on vehicles with diesel engines because diesel engines do not produce vacuum, which is required for traditional vacuum brake boosters. Most passenger cars and light trucks use vacuum brake boosters instead of hydro-boost systems.

Technician a Says a Hydraulic Brake Booster Is Usually Found