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'81 high beams flicker

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Old Oct 14, 2016 | 08:50 PM
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Default '81 high beams flicker

This is my first post although I have used the site to research and help solve problems , so hopefully I am doing this properly. My high beam lights flicker off and on - all four - after a few minutes. I have cleaned up the grounds and cleaned the plugs on all four headlights as people have said to do on this site. Also I have installed a new headlight switch. The low beam works fine. I am thinking that to solve the problem I am going to have to install a relay , but would a relay on the bright circuit solve the problem ? I have read the older threads on people installing two relays but if the low beam is working ok would it be necessary to install a relay on the low beam side ? Looking forward to opinions and suggested solutions as this sight seems to have a lot of knowledgeable people. Sorry for being a bit long winded !

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Old Oct 15, 2016 | 06:11 AM
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The headlight switch acts like a circuit breaker if too many amps are drawn through the circuit. Do you have high wattage/amp headlights like my Hella Euro lights? When I originally installed my 4 Hella Halogens Euro's back in 1983, I could not run (4) 55/60 watt low and the 55 watt Hella highs...The lights would flicker, which about 18 amps draw. The easy fix at that time was to replace one of the highs with a sealed halogen which only pulled 35 watts instead of 55 watts.

The cure for the last 35 years was too run a relay on the highs only which I did and the problem was solved. Even today I run 100 watt halogen highs. The low beam circuit is on the headlight switch with no relay. I have never had an issue since.....

Last edited by jb78L-82; Oct 15, 2016 at 06:12 AM.
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Old Oct 15, 2016 | 09:03 AM
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Thanks jb78L-82, that was my theory but finding someone who has done it sure makes it easier to make the final decision to move forward ! Did you purchase a kit, or make up your own as I know of a vendor that makes a kit and I lean that way because it looks so much cleaner and professional than what I might end up with if I do it myself, plus I think the price is reasonable ? Thanks again for the help ! !
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Old Oct 15, 2016 | 11:06 AM
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Originally Posted by racerguy
Thanks jb78L-82, that was my theory but finding someone who has done it sure makes it easier to make the final decision to move forward ! Did you purchase a kit, or make up your own as I know of a vendor that makes a kit and I lean that way because it looks so much cleaner and professional than what I might end up with if I do it myself, plus I think the price is reasonable ? Thanks again for the help ! !
I bought a 20 amp relay, ran the wires neatly, bundled them nicely...done. Probably cost somewhere between $5-7 dollars back in 1990.
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Old Oct 15, 2016 | 02:12 PM
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Originally Posted by jb78L-82
I bought a 20 amp relay, ran the wires neatly, bundled them nicely...done. Probably cost somewhere between $5-7 dollars back in 1990.
Wow, that is really reasonable, guess I should at least give it a try ! ? Did you also install a fuse in the line ?
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Old Oct 15, 2016 | 04:53 PM
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Originally Posted by racerguy
Wow, that is really reasonable, guess I should at least give it a try ! ? Did you also install a fuse in the line ?
Yes of course on the fuse...I forgot to mention that...long time ago
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