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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
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Need a pic or diagram of vacuum lines

  • Thread starter Thread starter stangboy
  • Start date Start date Aug 5, 2010

stangboy

Founding Member
Aug 31, 1999
3,932
469
194
New Orleans, LA
Aug 5, 2010
#1
  • Aug 5, 2010
  • #1
Hey guys, does anybody have a picture or a diagram of the vacuum lines under the upper intake to the vacuum tree and MAP sensor on an 88 5.0?
 

jrichker

StangNet's favorite TOOL
In Remembrance. Thank you for your contributions
Mar 10, 2000
27,512
2,813
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Dublin GA
Aug 5, 2010
#2
  • Aug 5, 2010
  • #2
Here's some help for the vacuum lines - Red line goes to the fuel pressure regulator.
Speed density cars: One goes from the manifold to the MAP sensor on the firewall behind the upper manifold.
Mass Air cars: NO connection goes from the manifold to the BARO sensor on the firewall behind the upper manifold.

There is a cluster of vacuum lines on the passenger side wheel well. A plastic sleeve covers the colored part of the lines: push it back to see the colors I am referring to.

One white line from the vacuum line cluster goes to the rear smog pump valve. One line goes from the manifold to the red line on the vacuum line cluster. One green line from the vacuum line cluster goes to the EGR, The black line from the vacuum line cluster goes to the from smog pump valve.

One large vacuum line from the front goes to the carbon canister control solenoid.

One large line goes to the vacuum tree

One large line to the PVC valve.



Some help from Tmoss (diagram designer) & Stang&2Birds (website host) with a picture...

Diagrams courtesy of Tmoss




See the following website for some help from Tmoss (diagram designer) & Stang&2Birds
(website host) for help on 86-95 5.0 Mustang wiring Mustang FAQ - Engine Information Everyone should bookmark this site.


Ignition switch wiring
http://www.veryuseful.com/mustang/tech/engine/images/IgnitionSwitchWiring.gif

Fuel, alternator, A/C and ignition wiring
http://www.veryuseful.com/mustang/tech/engine/images/fuel-alt-links-ign-ac.gif

Complete computer, actuator & sensor wiring diagram for 88-91 5.0 Mass Air Mustangs
http://www.veryuseful.com/mustang/tech/engine/images/88-91_5.0_EEC_Wiring_Diagram.gif

Complete computer, actuator & sensor wiring diagram for 91-93 5.0 Mass Air Mustangs
http://www.veryuseful.com/mustang/tech/engine/images/91-93_5.0_EEC_Wiring_Diagram.gif

Complete computer, actuator & sensor wiring diagram for 94-95 5.0 Mass Air Mustangs
http://www.veryuseful.com/mustang/tech/engine/images/94-95_5.0_EEC_Wiring_Diagram.gif

Vacuum diagram 89-93 Mustangs
http://www.veryuseful.com/mustang/tech/engine/images/mustangFoxFordVacuumDiagram.jpg

HVAC vacuum diagram
http://www.veryuseful.com/mustang/tech/engine/images/Mustang_AC_heat_vacuum_controls.gif

TFI module differences & pinout
http://www.veryuseful.com/mustang/tech/engine/images/TFI_5.0_comparison.gif

Fuse box layout
http://www.veryuseful.com/mustang/tech/engine/images/MustangFuseBox.gif
 

stangboy

Founding Member
Aug 31, 1999
3,932
469
194
New Orleans, LA
Aug 6, 2010
#3
  • Aug 6, 2010
  • #3
Thanks for the explanation because I looked at those diagrams when I did a search but I just got confused. I was at work so couldn't refer to the car while looking at the diagram.
 
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