How To Add Headlight Relays To Your Classic Mopar (Or Anything, Really)
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- čas přidán 8. 04. 2022
- Would you like headlights that actually work in your classic muscle car or hotrod? Would you prefer that the smoke stays in your vintage wiring? Are you tired of having your fire extinguisher recharged every time you want to go out for a nighttime cruise? Look no further than Headlight Relays (TM). Headlight Relays (TM) are designed specifically with you in mind - they make your lights work as they should and take the load off of your tired old electrical system. Headlight Relays (TM) are available wherever relays are sold - because they are nothing special and (if you can operate a crimping tool) are extremely easy to set up.
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Can't wait for the truck!
It’s taking a little longer than anticipated 😅 it’s now going to be a completely different truck, but it’s happening!
BEST relay video on the net 🎉. Nice job 👍🏽
Great info. Thank you!!
My old 1984f250 has flickering lights too. My search brought me to you're vid..Thank you ..
Helped a bunch..I understand the low high beam 2 relay option better now..
Also bonus , recently my 3G alternator wire which is tapped into my headlights burned up my fusible link..
I did not hook it up, the guy who dropped my new motor in Did..
So now,
I'm gonna start over and hook the alternator the way it should be..
Directly to the starter relay..
And separate the headlights and hook up relays to them..
Thank You!!!!
I used to have a big problem with my 1967 barracuda when I come up to a stoplight and the headlights to go dim I tried everything and then years later I found out about headlight relays and use them on all my classic vehicles plus I also use them on the HVAC blower motors because they take a lot of power.
Yep - I see that problem a lot. I did also have some other tips in this video that can help - making absolutely sure the firewall connector is clean and in good shape is a great place to start.
Speedway motors sells a plug and play headlight relay kit. Fits any 12 v earlier car. it is a no brainer to install.
Nice!
Will a relay be as good as a separate LED headlamp harness? I had one on my 64 barracuda prior to getting the entire car rewired. Super bright. New car wiring harness, my lights are almost as dim as In the beginning.
This would be easier than adding a new headlamp harness it seems.
I’ve never dealt with a separate harness as you are describing - but this works very well.
I like this '66 Charger mainly because my dad had one when I was growing up. Same color, even.
Run a charge wire from the alternater to the starter. It'll bypass the bulkhead.
Not only is that done on the car you’re looking at in this video, I also have a charging system guide video in which I suggest people do exactly that.
@@DeadDodgeGarage I'll check out your library. I'm going to wire up my 70 Roadrunner using this video. Thanks.
Yeah I have a 74 Dodge D200 with no high beams in my dash lights don't work the high beam light comes on but the lights go black but everything else works in the truck
High beams are most likely a firewall connector issue. I’ve never had that with high beams, but there aren’t many other possibilities there. Headlight switch is probably the dash light problem. I usually spin the adjustment for them back and forth for a few minutes, and they will often magically come back.
Or just stick in some LED sealed beams. Bolt right in. Much less power draw and vastly superior in every way. Got a set in my '93 D250 and they are amazing. I can see just as well as in my 2020 Hyundai with factory LED headlights.
I’m not at all a fan. It sucks that everyone else has them these days so you almost have to go there. They don’t look right in these cars. Plenty of people use them and that’s fine. But me? I’ll keep my bright sealed beams, thanks.
Did your headlight rotators work? Did you have those on relay?
Yes, they have to use relays for the switching logic. I did the modern relay conversion and replaced one headlight motor. Two modern relays take the place of the three originals behind the glovebox. It worked, but I had to use the “hold open” switch whenever the lights were on, or one of them would constantly blink up and down. If you are after the modern relays setup, it can be found through a Google search. There’s like a special ‘66-67 Charger website that had all the info.
Thanks. Isn’t there a way I can test the rotating motors? I know the wires going to them are getting almost 12 volts.
How do you do this when the wires are goin through the horn relay?
Which wires? Are we talking GM or something?
@@DeadDodgeGarage 67 impala
@@jaym6325 The main power wires junction at the horn relay, but that doesn't really change the procedure for adding relays like this.
The largest fail point in the Chrysler electrical is the amp gauge. This is what you really want to watch. Fires start under the dash when the amp gauge connection gets worn out or loose.
I have definitely heard people say that, but have never seen it happen. All of the failures I’ve seen were “open” failures, meaning no power passes through then. I discuss the amp gauge failures I’m familiar with in my no crank, no start video.
Nice mod full power helps a lot?
Oh yeah. The difference is definitely noticeable. And taking strain off of the poor old factory electrical system is always a good move.
@@DeadDodgeGarage yep that poor old light switch has served well it deserves a break lol 😆
I have a bunch of chewed up wires from a rat. Good time to add relays .
6:04 your marker light is flashing on and off with high beam not sure why
sorry at about 6:01
That’s by design 😅 they’re not supposed to be on that car, but because they’re there, I installed bright bulbs and wired them as fog lights - and fog lights come on with low beams, but not high beams, by law in most states.
When i put on my lights those fog-lights and blinker is turning on..
When I turn on lowbeam those turning off,
I want to have them ‘on’ even when I turn on the low beam.. how can I do that?
I'm adding relays, but I'll use time delay off.
Nice. That’s a cool idea.
So, when are you doing this to your demon?
Well… probably never. But there is some mild hackery already…
Just do it, WHATS THE WORST THAT COULD HAPPEN 🫣
I suppose the worst that could happen is one could wire it incorrectly, create a dead short, connect the battery and quickly walk away without noticing the smoke.