Vacuum Diagrams: Introduction

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

NOTE: When replacing or repairing vacuum or purge hoses, DO NOT use soapy water or any type of solvent for lubrication.

Fig 1: Engine Control System Vacuum Diagram (Altima)

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Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Identifying Engine Vacuum Hose Routing (Altima)

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Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 3: On Board Refueling Vapor Recovery Vacuum Diagram (Altima)

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Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 4: Engine Control System Vacuum Diagram (Frontier 4-Cylinder & Xterra 4-Cylinder)

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Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 5: Identifying Engine Vacuum Hose Routing (Frontier 4-Cylinder & Xterra 4-Cylinder)

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Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 6: Engine Control System Vacuum Diagram (Frontier V-6 & Xterra V-6)

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Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 7: Identifying Engine Vacuum Hose Routing (Frontier V-6 & Xterra V-6)

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Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 8: Engine Control System Vacuum Diagram (I30 & Maxima)

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Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 9: Identifying Engine Vacuum Hose Routing (I30 & Maxima)

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Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 10: On Board Refueling Vapor Recovery Vacuum Diagram (I30 & Maxima)

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Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 11: Engine Control System Vacuum Diagram (Pathfinder & QX4)

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Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 12: Identifying Engine Vacuum Hose Routing (Pathfinder & QX4)

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Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 13: Engine Control System Vacuum Diagram (Quest)

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Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 14: Identifying Engine Vacuum Hose Routing (Quest)

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Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 15: Engine Control System Vacuum Diagram (Sentra 1.8L)

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Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 16: Engine Control System Vacuum Diagram (Sentra 2.0L)

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Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 17: Identifying Engine Vacuum Hose Routing (Sentra 1.8L)

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Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 18: Identifying Engine Vacuum Hose Routing (Sentra 2.0L)

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Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 19: On Board Refueling Vapor Recovery Vacuum Diagram (Sentra)

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Courtesy of NISSAN MOTOR CO., U.S.A.