Engine Vacuum Diagrams: Introduction

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

F - BASIC TESTING - 4.3L

F - BASIC TESTING - 5.0L

F - BASIC TESTING - 5.7L

F - BASIC TESTING - 6.5L DIESEL

F - BASIC TESTING - 7.4L