1. The brake servo vacuum hose, which runs from the brake servo to the throttle body. This hose is responsible for providing vacuum to the brake servo, which assists the driver in applying the brakes.
2. The cruise control vacuum hose, which runs from the throttle body to the cruise control vacuum reservoir. This hose is responsible for providing vacuum to the cruise control vacuum reservoir, which stores vacuum for use by the cruise control system.
3. The transmission vacuum hose, which runs from the throttle body to the transmission. This hose is responsible for providing vacuum to the transmission, which helps to control the shifting of the gears.