Ford Bronco Gasoline Engine Vacuum Distribution Diagram - Hose Color Routing

This document is a vacuum distribution diagram for gasoline engines, showing a typical vacuum routing system from a central vacuum reservoir/tree connected to the manifold fitting (vacuum source). It notes that details differ between vehicles. Color-coded vacuum hoses branch from the central tree: a pink line runs to the solenoids, a black line runs to the vacuum check valve (referenced on pages 53-1 and 54-1) and another black line to the manifold fitting near the Manifold Absolute Pressure (MAP) sensor, a black/yellow line runs to the air cleaner, a black line serves the automatic transmission option (C6), a red line goes to the distributor, and a hose marked black with yellow letters supplies the vacuum brake booster. A note states that the auxiliary heater vacuum motor and water valve are supplied with the auxiliary heater with or without auxiliary A/C. A cross-reference directs readers to page 142-2 for diesel engine vacuum distribution. Readers can use this diagram to identify vacuum hose colors and trace which component each hose serves when diagnosing vacuum leaks or reconnecting lines after service.