Recent content by 78F150SUPERCAB4X4

  1. 78F150SUPERCAB4X4

    GEAR VENDORS TROUBLESHOOING HELP NEEDED

    Franklin2--I guess great minds think alike. I thought the exact same thing, that if it happened again I know where to start looking.
  2. 78F150SUPERCAB4X4

    GEAR VENDORS TROUBLESHOOING HELP NEEDED

    HCE--You're right, it locks out the overdrive, not the 4x4. I misspoke, but I meant what you said.... Ok guys, I got a chance to work on the GV in the truck tonight. I removed the instrument bezel and was able to remove the dash switch and do some testing. So behind the Autodrive light there's...
  3. 78F150SUPERCAB4X4

    GEAR VENDORS TROUBLESHOOING HELP NEEDED

    Yeah, the Mustang project (it's a GT 5.0L) started out with a simple clutch replacement and while the 5 speed was out I decided to rebuilt it. But it snowballed into having to cut off the front two catalytic converters because I couldn't get two of the exhaust manifold bolts off and the other...
  4. 78F150SUPERCAB4X4

    GEAR VENDORS TROUBLESHOOING HELP NEEDED

    Thanks for the detailed info guys!!! You guys are awesome. Olds64--Thanks for those steps on the multimeter. That's exactly what I needed to know. Franklin2--thank you for bringing that to my attention. Not knowing that, I would have tested the switch just like I tested it for voltage (I...
  5. 78F150SUPERCAB4X4

    GEAR VENDORS TROUBLESHOOING HELP NEEDED

    Idibronco-- The ground was the first thing I checked. It's only got 1.4 ohms and the wire is on bare metal. The ground seems to be good. A couple guys mentioned to check continuity. I know this may be a dumb question to most, but I'm not too knowledgeable about electrical stuff. How do you...
  6. 78F150SUPERCAB4X4

    GEAR VENDORS TROUBLESHOOING HELP NEEDED

    BlindAmbition--Thanks for posting that diagram. So it looks like mine is wired the same way, with one exception. I don't have a 4x4 lockout wire plugged into anything because my truck is a 78 and the tranny &/or transfer case doesn't have any electronics on it to plug the 4x4 lockout wire into...
  7. 78F150SUPERCAB4X4

    GEAR VENDORS TROUBLESHOOING HELP NEEDED

    K-NITE--I have not tested the speed sensor, but I did unplug and plug back in all the wires going to the control box and that didn't fix the problem. The problem seems to be that the red light on the dash switch won't come on for some reason. When it does come on, the GV will shift. I can sit in...
  8. 78F150SUPERCAB4X4

    GEAR VENDORS TROUBLESHOOING HELP NEEDED

    Ok guys, I have an update. So I flipped the on/off power switch on the dash switch and nothing on the control box changed. There's still just one light lit up on the control box, which I believe is just the light indicating there's power to the box because when I unplugged the fuse, that light...
  9. 78F150SUPERCAB4X4

    GEAR VENDORS TROUBLESHOOING HELP NEEDED

    Olds64--Yeah that makes sense. I actually made my own cables out of some 00 welding wire. Shouldn't have any problems with the cables.
  10. 78F150SUPERCAB4X4

    GEAR VENDORS TROUBLESHOOING HELP NEEDED

    Olds64--I believe so. Why?
  11. 78F150SUPERCAB4X4

    GEAR VENDORS TROUBLESHOOING HELP NEEDED

    Cubey--Good thought, might have to try that after I do the testing the guys in this thread have suggested. But since I don't get home from work until after dark, it might not get done until this weekend.
  12. 78F150SUPERCAB4X4

    GEAR VENDORS TROUBLESHOOING HELP NEEDED

    Cubey--the problem with that is unless they're open on the weekends, they're closed when I get off work and have a chance to call. That's why I emailed them.
  13. 78F150SUPERCAB4X4

    GEAR VENDORS TROUBLESHOOING HELP NEEDED

    Captain720--Thanks for that info. That's what I needed to know. Unfortunately it's been raining all day and I didn't get a chance to work on this.
  14. 78F150SUPERCAB4X4

    GEAR VENDORS TROUBLESHOOING HELP NEEDED

    Captain720--thanks for the info. So what ohm/resistance reading am I looking for? The lower the number the better? HCI--4x4 lockout is connected. Everything is hooked up and connected per the instructions and everything has been working properly for the past 6 years. I haven't done anything to...
  15. 78F150SUPERCAB4X4

    GEAR VENDORS TROUBLESHOOING HELP NEEDED

    I have no idea. I can check this tomorrow. So to check resistance, I put my multimeter on the ohms setting?? I'm not very good with electrical so I will need advice on this.
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