countrypyhysician
New Member
I wanted to post some solutions I found to a couple of my problems.
1974 Bronco, 302 roller from a Mercury Mountaineer, Original wires (one can hope to change them out one day)
I was having constant issues with the horn shocking me (and intermittently working) as well as the brake lights and turn signals acting funny.
For the horn:
I replaced the steering wheel hub and adapter. It worked at first but again started shocking me.
I tinkered with the horn button to make sure the connections were good. No luck
See below for how I replaced the run signal switch
For the brake lights and turn signals:
Where to start.....multiple issues because of multiple gremlins.
The grounds on the back tail lights were not good. It is grounded through the tail light housing itself. The paint on the body kept it from grounding well.... so I created a screw through the tail light assembly and attached a wire from this to the body. I also added multiple ground straps to the Bronco.
The previous owner added a towing harness to the front and back. It was connected with wire nuts and above that was connected incorrectly. I unhooked both, connected them this time correctly and with solder/heat shrink.
I replaced both the turn signal flasher relay and the hazard flasher relay.
I removed the old turn signal switch in the steering column. That was an absolute headache but it is done. This helped at first but I still had issues with the brake lights.
So what solved the remaining wiring problems for the lights and horn? The turn signal lever. It was screwing in too far and making a connection with the turn signal switch inside the steering column. It was also touching the side of the steering column causing it to ground. It was by happenstance that I figured this out. I then cut off part of the threads so it would not go as deep and make a connection with the turn signal switch. The horn no longer shocks me and the brake lights and turn signals work like a champ. What a headache.
As far as my coolant goes, I replaced the coolant a few months ago but the reservoir turned to brown water quickly. I drained it again and this time added distilled water mixed with a flush. I ran it for 20 minutes with the heater on then drained it. It looked like mud. I decided to start flushing with distilled water in the same process as described above until it became mostly clear. It took 12 rounds of distilled water. I then of course replaced it with coolant. It maed a difference in the cooling for sure.
I hope this helps someone.
1974 Bronco, 302 roller from a Mercury Mountaineer, Original wires (one can hope to change them out one day)
I was having constant issues with the horn shocking me (and intermittently working) as well as the brake lights and turn signals acting funny.
For the horn:
I replaced the steering wheel hub and adapter. It worked at first but again started shocking me.
I tinkered with the horn button to make sure the connections were good. No luck
See below for how I replaced the run signal switch
For the brake lights and turn signals:
Where to start.....multiple issues because of multiple gremlins.
The grounds on the back tail lights were not good. It is grounded through the tail light housing itself. The paint on the body kept it from grounding well.... so I created a screw through the tail light assembly and attached a wire from this to the body. I also added multiple ground straps to the Bronco.
The previous owner added a towing harness to the front and back. It was connected with wire nuts and above that was connected incorrectly. I unhooked both, connected them this time correctly and with solder/heat shrink.
I replaced both the turn signal flasher relay and the hazard flasher relay.
I removed the old turn signal switch in the steering column. That was an absolute headache but it is done. This helped at first but I still had issues with the brake lights.
So what solved the remaining wiring problems for the lights and horn? The turn signal lever. It was screwing in too far and making a connection with the turn signal switch inside the steering column. It was also touching the side of the steering column causing it to ground. It was by happenstance that I figured this out. I then cut off part of the threads so it would not go as deep and make a connection with the turn signal switch. The horn no longer shocks me and the brake lights and turn signals work like a champ. What a headache.
As far as my coolant goes, I replaced the coolant a few months ago but the reservoir turned to brown water quickly. I drained it again and this time added distilled water mixed with a flush. I ran it for 20 minutes with the heater on then drained it. It looked like mud. I decided to start flushing with distilled water in the same process as described above until it became mostly clear. It took 12 rounds of distilled water. I then of course replaced it with coolant. It maed a difference in the cooling for sure.
I hope this helps someone.
