4.0 to 4.6 swap interior wiring issue

Discussion in '2005+ Mustang GT 4.6L Tech' started by rpenner54, Nov 1, 2020.

  1. rpenner54

    rpenner54 Junior Member

    3
    0
    Maybe not to hard core or greasy but I have a question. I have completed my 4.0 to 4.6 swap. I completely gutted the V8 car's interior/harness/motor/tranny/axle. Swapped everything over to my V6 car. Everything seems to work so far except the windows. I have no power to them. The radio works. The locks work with the remote however not with the buttons on the door. All fuses are good, in fact I took out fuses just to replace them with new and still nothing.

    This is a weird one as I figured something with the motor wiring would be the hard part but it went together well.

    Has anyone run into a issue like this before?

    I want to get this project wrapped up and this is just hanging me up.

    If anyone is in the Wichita Kansas area and can provide a second set of eyes or knows of a place to bring it to let me know

    Thanks!
     
  2. teeje

    teeje Member

    Age:
    25
    436
    50
    I just saw this on Facebook. When you swapped everything over did you also swap the SJB

    Sent from my SM-N986U using Tapatalk
     
  3. rpenner54

    rpenner54 Junior Member

    3
    0
    I sure did. That's the part that is making me crazy about it. Everything was swapped. The only thing not swapped was the intrusion deal on the overhead lights because when I removed it the plastic clips broke. Maybe I need to try plugging that in to see if that helps. I am not sure.
     
  4. teeje

    teeje Member

    Age:
    25
    436
    50
    I don't think that will have anything to do with it. You said you swapped everything. Did you even swap the window switches over?

    Sent from my SM-N986U using Tapatalk
     
  5. rpenner54

    rpenner54 Junior Member

    3
    0
    I sure did. I wonder if my SJB somehow got fried in the swap or something. It says scrap if dropped on it. However I never dropped it. Maybe I whacked it at some point and messed it up. I have the drivers side window down right now too and if I could just get it to go up temporary that would even help.
     
  6. teeje

    teeje Member

    Age:
    25
    436
    50
    Take 12v and supply power to the circuit for the window. If it rolls up you know that the motor is good

    Sent from my SM-N986U using Tapatalk
     
  7. Rey1018

    Rey1018 Junior Member

    1
    0
    I have the same problem you have and have completely swapped everything like you have. Did you ever find a solution for this.
     
  8. TexasBlownV8

    TexasBlownV8 Formerly TexasBlownV6

    4,912
    35
    I don't have a solution, but, there was no need to swap any of the body harness/interior wiring, in a 4.0 to 4.6 swap.
    However, since you're at this state now, try to diagnose the specific circuit. I'm guessing it is, as suggested, due to the SJB, or some wire thereabouts. Power from the BEC should feed the SJB and the windows/locks. Depending on the exact wiring, there will either be switched-voltage to the power window switch, or the ground will be switched. I would start by getting the wiring diagram and start at the window switch, track it down from there.
     
    freeloader1969 likes this.
  9. Ekis

    Ekis Junior Member

    5
    0
    Hope these wiring diagrams can be of help.
     

    Attached Files:

    Last edited: Jan 6, 2021
  10. Stunner67

    Stunner67 Junior Member

    4
    2
    I am going to be doing the same thing. I hope I don't have any issues
     
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.