Vacuum Diagrams: Introduction

NOTE: References to Econoline include Cutaway and RV Cutaway. References to Pickup include Cab & Chassis.

This article contains underhood schematics of vacuum hose routing. Use these vacuum diagrams during the visual inspection performed in the appropriate BASIC DIAGNOSTIC PROCEDURES article. This will assist in identifying improperly routed vacuum hoses, which may cause driveability and/or computer-indicated malfunctions. To properly identify calibration code, catch code must be identified. The catch code is the 4 alpha/numeric characters located in parenthesis at the end of the calibration code. Example; 9-EQA-BBD 9 (BAX3). The BAX3 is the catch code. The catch code tag is attached to the powertrain control module connector. See POWERTRAIN CONTROL MODULE LOCATION table. On some models, the catch code tag may also be located on the "A" pillar or inner fender.

POWERTRAIN CONTROL MODULE LOCATION

Model		Location
Econoline & Excursion		Left Rear Of Engine Compartment, Near Master Cylinder
Expedition, Explorer, Mountaineer, Navigator & Ranger		Right Rear Of Engine Compartment, Mounted On Cowl
Pickup
F150		Behind Right Kick Panel, Through Bulkhead
F250/F350 Super Duty		Left Rear Of Engine Compartment, Near Master Cylinder
Villager		Behind Glove Box
Windstar		Right Rear Of Engine Compartment, Mounted On Cowl

NOTE: Vacuum diagrams for applications not shown are not available from manufacturer. See vehicle underhood emissions label.

VACUUM DIAGRAM REFERENCE INDEX

Application/Calibration No.

See

Econoline

4.2L

Fig 1

4.6L

Fig 2

5.4L

⁽¹⁾

6.8L

0-E41-8H0-B10 (HNS6)

⁽²⁾

0-E41-8H0-B12 (HNS6), 0-E41-8R0-B06 (MLD2) & 9-DTA-BGD (CHK4)

Fig 3

0-E41-8Q0-B10 (TVF3)

Fig 4

0-418-Q0B-06 (TVF

⁽³⁾

0-E41-8R0-B10 (MLD3) & 0-E41-8R0-B11 (MLD4)

Fig 5

0-E41-8N0-506 (MXK2), 0-E41-8N0-510 (MXK3), 0-E41-8P0-A6 (CIS2) & 0-E41-8P0-A10 (CIS3)

Fig 6

Excursion

5.4L

⁽¹⁾

6.8L

0-L11-8D0-B06 (MXH2)

Fig 2

0-L11-8N0-A06 (FXU2)

Fig 7

Expedition

4.6L

Fig 2

5.4L

Fig 8

Explorer & Mountaineer

4.0L

OHV ⁽⁴⁾

Fig 9

SOHC

9-NEA-ABB (JNJ1)

Fig 10

9-NEA-BAH (CDE4) & 0-U31-A40-505 (LXD1)

Fig 11

5.0L

Fig 12

Navigator

Fig 8

Pickup

F150

4.2L

Fig 13

4.6L

Except 0-F51-6EO-B10 (RQD3)

Fig 14

0-F51-6EO-B10 (RQD3)

Fig 2

5.4L

0-F51-4DO-B06 (CPE2), 0-F51-4DO-B10 (DPE3), 0-F51-4DO-B11 (CPE4), 0-F51-4MO-B06 (NCG2), 0-F51-4MO-B10 (NCG3) & 0-F51-4MO-B11 (NCG4)

Fig 8

0-F52-2B0-A06 (UUV2), 0-F52-2E0-A06 (FRR2), 0-F52-2F0-A06 (KWV2), 0-F52-2G0-B07 (SKB3) & 0-F52-2H0-B07 (EGJ3)

Fig 13

F250/F350 Super Duty

5.4L

0-F51-4DO-B11 (CPE4), 0-F72-8A0-B06 (ZLG2), 0-F72-8A0-B10 (ZLG3), 0-F71-4D0-B06 (FVR2) & 0-F71-4D0-B10 (FVR3)

Fig 8

7-28V-0A0-6 (DRC2), 0-F71-4N0-A10 (CPY3), 0-F71-4N0-A11 (CPY4), 0-F72-8V0-A10 (DRC3) & 0-F72-8V0-A11 (DRC4)

Fig 15

6.8L

0-F71-8C0-B06 (WKR2), 0-F71-8C0-B10 (WKR3), 0-F71-FC0-B11 (FID4) & 0-F71-8C0-B11 (WKR4)

Fig 8

0-F71-8P0-A06 (FDA2), 0-F71-7P0-A10 (KND3), 0-F71-8P0-A11 (FDA4) & 0-F71-7P0-A11 (KND4)

Fig 15

0-F71-7P0-A06 (KNDE), 0-F71-8R0-B06 (QED2), 0-F71-7R0-B06 (QUM2), 0-F71-8R0-B10 (QDE3) & 0-E71-7R0-B10 (QUM3)

Fig 5

Ranger

2.5L

3.0L

4.0L

Villager

Windstar

3.0L

Fig 20

3.8L

Fig 21

⁽¹⁾	Information is not available from manufacturer. See vehicle underhood emissions label.

⁽²⁾	See Fig 2 or Fig 3 .

⁽³⁾	For vehicles with Gross Vehicle Weight Rating (GVWR) of 8501-14,000 lbs., see Fig 3. For vehicles with GVWR of more than 14,000 lbs., see Fig 4.