Holy crap it runs. Electrical questions

[Gunnibronco]

I'm very happy to say I hooked the battery up, and test fired the Bronco and it ran on the first try.

Everything electrical seems to work except 2 things. I'll start researching but hoping someone will have some pointers.

Wipers only run on "High" and are noisy when they are running. I installed an intermittent wiper switch with the new harness. The destructions in the Centech kit were lacking, not to mention the addition of the intermittent wiper switch. I get nothing with the switch in the intermittent "zone" on the switch, or the first click. Only after the second click do they run, and have a noisy weird grinding noise.

Heater fan only runs with the switch on low.

For as much work as I did (and gutting the Centech harness to minimize excess wiring and customizing it my truck) I'm sort of surprised these are the only problems.

[Gunnibronco]

I corrected the original post regarding the blower fan. It only runs on low speed.

I've found this post and am guessing this is the problem/solution. It's low priorty since I have some version of wipers and I have lots more to do before mid July/Rubicon.

https://classicbroncos.com/centechwiperswitch.shtml

Also weird, when I use the horn, the turn signal indicators on the dash flash just slightly. The actual front/rear turn signals are not flashing.

[Gunnibronco]

Some fussing with the wiper switch and I suddenly have all speeds. The bezel nut wasn't super tight and the switch turned clockwise after it reached the 'high' setting and all of the sudden I had a fully functional intermittent wiper switch. I'm not sure if that is good or bad. Sort of scary to have wonky electrical gremlins. But I tightened up the bezel nut and we've been good all evening.

The grinding noise was due to the linkage being a bit mixed up. I had the it clocked wrong on the passenger side wiper post. It was pushing on the motor output and pushing the gears together. I straightened out the linkage but there was too much in/out play on the motor output. I replaced the thin washer behind the linkage with a thicker one that helped keep prevent the output shaft from pushing inward and grinding the gears. All seems well.

As far as the fan, I think it's running on high speed with the switch on low. I have 12v to the motor. I'm assuming I messed something up with the resistor. It will have to wait. I hate that it's been so long since I wired everything I can't remember how everything hooks up.

[BroncoRaider]

The Painless wiring guide is good and it's available for download for free.
https://www.painlessperformance.com/Manuals/10113.pdf

[Gunnibronco]

Thanks. I'll look that over. I'm sure my Centech manual has something too.

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[Eck]

I had my wiring on the back of the heater switch jumbled up and so low was high and vice versa. Not sure if that’s what is happening.




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[Gunnibronco]

I had my wiring on the back of the heater switch jumbled up and so low was high and vice versa. Not sure if that’s what is happening.




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My guess is I mixed up hi/low and the wire from hi ended up getting disconnected. Makes sense.

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