Healight relay
Thread Starter
Pro
Joined: Nov 2011
Posts: 517
Likes: 20
From: Scroggins Tx
Healight relay
Headlights in my 75 go off after about 15 seconds.They are halogen and I first replaced the dimmer switch, which didn't help then the headlight switch and that didn't help either.
So I am now going with two relays, new plugs and new, heaver wire. The only original wire will be from the hl switch to the dimmer switch.
Between brakes and lights this car is driving me crazy.
So I am now going with two relays, new plugs and new, heaver wire. The only original wire will be from the hl switch to the dimmer switch.
Between brakes and lights this car is driving me crazy.
Melting Slicks
Joined: Apr 2009
Posts: 2,632
Likes: 112
From: Great Plains Iowa
Either your headlight switch or the multi-terminal plugin that plugs onto your headlight switch is burned up. I would return all of those unneeded parts and get your money back...................
Le Mans Master
Joined: Aug 2010
Posts: 5,339
Likes: 546
From: Central Texas
Former Vendor
Joined: Aug 2006
Posts: 76,656
Likes: 1,852
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
If it were me, before I did the conversion I'd find the fault which is simple enough. Power up the headlamps from the dimmer switch and see if you can replicate the problem. If you can't then I'd say the switch is the issue. The 15 seconds and then off sure sounds like a headlamp switch issue.
IMHO,
Willcox
Thread Starter
Pro
Joined: Nov 2011
Posts: 517
Likes: 20
From: Scroggins Tx
Thanks for the replies. I tried about every test and combination of lights with two different switches and both acted the same. As it seems all replacement switches are a gamble, I think I will go ahead with the relays. Thanks, Dave
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Race Director
Joined: Apr 2007
Posts: 11,152
Likes: 890
From: South Western Ontario
Replacement halogen should be the same wattage as the stock bulbs and still work. So, did you install stock same wattage replacements or higher wattage bulbs? Info on the bulbs you used could help.
I would use fusible links before using those fuse holders. Use really good connectors at the relay power connections too. One bad connection and you lose your lows which would really suck.
FYI, there are relay harnesses on eBay for about $40.
I would use fusible links before using those fuse holders. Use really good connectors at the relay power connections too. One bad connection and you lose your lows which would really suck.
FYI, there are relay harnesses on eBay for about $40.
Pro
Joined: Nov 2013
Posts: 730
Likes: 37
From: Catoosa Okla
When I upgraded the headlights, they would flash or just cut out.
Now, all the headlight switch is used for is a trigger for the relay that carries the load. Once you do the mod, you can put that issue behind you.