Dim Gages or Dim Driver
Moderator & parts slinger
Joined: Feb 2007
Posts: 50,263
Likes: 5,822
From: S/W Missouri, Polk county
Dig into the Ford truck information and then some thread. I have a instrument cluster removal walk through on how to remove it. You need to push yourself some speedo cable slack.
Click here. https://www.ford-trucks.com/forums/1...l#post14880899
Or here. https://www.ford-trucks.com/forums/1...l#post14982704
Click here. https://www.ford-trucks.com/forums/1...l#post14880899
Or here. https://www.ford-trucks.com/forums/1...l#post14982704
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More Turbo
Joined: Apr 2013
Posts: 661
Likes: 21
From: Waukesha WI
NEW QUESTION: Ref. my 75 F-150 Many years ago someone cut up the horn wires. It got rewired bypassing the relay.
The wires to the horns became hot. I had to pull the wires on both horns. How can I rewire the circuit?
The wires to the horns became hot. I had to pull the wires on both horns. How can I rewire the circuit?
Logistics Pro
Joined: Jul 2005
Posts: 4,217
Likes: 154
You want the wire from your steering wheel to go to the relay. You can test by pressing the horn button and having someone listen for the relay to click. Then from the relay, there will be one wire to the horn.
I think you've got a yellow(?) wire which goes from the battery cable side of the solenoid, to the relay.
Another wire goes from the switch to the relay.
And of course the wire from the relay to the horn(s).
It's a three wire relay, so it needs to ground to the inner fender.
You also need ground continuity between your steering wheel and the steering box - there is a jumper on the rag joint which sometimes fails, in which case you can just run a little jumper wire across the non-conducting part of the rag joint.
The horn(s) ground to the radiator support.
My truck is a '77 so I guess I could go and check on the wire colors if you need me to.
I think you've got a yellow(?) wire which goes from the battery cable side of the solenoid, to the relay.
Another wire goes from the switch to the relay.
And of course the wire from the relay to the horn(s).
It's a three wire relay, so it needs to ground to the inner fender.
You also need ground continuity between your steering wheel and the steering box - there is a jumper on the rag joint which sometimes fails, in which case you can just run a little jumper wire across the non-conducting part of the rag joint.
The horn(s) ground to the radiator support.
My truck is a '77 so I guess I could go and check on the wire colors if you need me to.
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