Vacuum Diagrams: Introduction
NOTE:
On B2300, B3000, B4000, and Protege, information is not available from manufacturer. See underhood emission decal on vehicle.
This article contains underhood views or schematics of vacuum hose routing. Use these vacuum diagrams during visual inspection in the BASIC TESTING article. This will assist in identifying improperly routed vacuum hoses which cause driveability and/or computer indicated malfunctions.