Vacuum Diagrams: Introduction

This article contains underhood views or schematics of vacuum hose routing. Use these vacuum diagrams during visual inspection in appropriate BASIC TESTING article in the ENGINE PERFORMANCE section. This will assist in identifying improperly routed vacuum hoses, which cause driveability and/or computer-indicated malfunctions.

*  F - BASIC TESTING - 2.5L

*  F - BASIC TESTING - 3.0L

*  F - BASIC TESTING - 3.3L GASOLINE

*  F - BASIC TESTING - 3.3L CNG

*  F - BASIC TESTING - 3.8L