Headlights cut out

[Jesus_man]

My headlights will shut on and off on their own after they have been on a while. The switch feels fairly hot to the touch, could that be my problem?? It's been happening for a LONG time, but since I rarely drive at night, it's never been a priority, but maybe it's time.

What say you? Replace the switch? Are there more HD switches out there?

J.D.

[Viperwolf1]

Headlight relays are the answer.

[Jesus_man]

So use a relay to take the full amps so the switch only sees low amps?

I have an extra relay or two for off-road lights. Would that suffice?

[Viperwolf1]

Yep. You need 2 relays, one for low beam and one for high beam.

[Jesus_man]

Sweet, thanks! My dimmer switch needs replaced since it only works on High beams, so maybe that's part of the reason the switch over-heats. Maybe time to do it all!

[Viperwolf1]

The swiches are a poor design. I've never seen a stock Bronco that could run the high beams for more than 30 minutes without tripping the thermal breaker in the switch. The relays will really brighten your lights too.

[Jesus_man]

AWESOME!

[Gunnibronco]

Thanks for the wiring diagram, I was going to add the relays to my new Centech harness, before installing it. This makes it easy.

Chad

[ZOSO]

I have this same issue in my 79. I figured mine was caused by the h4 conversion with 95/110watt bulbs.

[Colorado75bronc]

yea i had to replace my switch 3 years ago as it was having issues in the dimmer circuit, when i did it i also did the h4 conversion with the high output IPF bulbs, and wired in relays, one of the best things i've done to the truck

[Jesus_man]

Good to hear. I have one headlight that the adjusting screw is broken. I should replace that so it does not shoot down at the ground.