Unlocking the Secrets: Understanding the Role of Vacuum in 1980's GM Cars - Part 1
In this video we'll break down exactly what these systems are that are controlled by engine vacuum on your 1980's or 90's GM car or truck.
Contents:
Intro 0:00
Systems are different 0:28
Power Brakes 0:58
PCV System 1:40
Vacuum Breaks 2:19
MAP Sensor 3:05
THERMAC 3:29
Evaporative Emissions 5:09
EGR 7:39
Air Management 8:41
Early Fuel Evap 9:12
