67 Headlight Bulb Switch
Thread Starter
Racer
Joined: Aug 2011
Posts: 377
Likes: 16
From: SMITHFIELD N C
67 Headlight Bulb Switch
Has anyone come out with a repo headlight switch that does not heat up and cut off the headlights after several minutes of use? Or is there a solution to the repo ones? This happens with both the original T3 bulbs, but much faster with the halogen bulbs.
Race Director
Joined: Jan 2002
Posts: 15,351
Likes: 2,724
From: Close to DC
C2 of the Year Finalist - Modified 2020
I'm somewhat electrically challenged, but I think you could have another problem in your headlight wiring. I have not heard of this issue before. 
Dennis
Dennis
Team Owner
Joined: Feb 2003
Posts: 54,104
Likes: 9,418
From: Sitting in his Nowhere land Hanover Pa
2024 C2 of the Year Finalist - Unmodified
2015 C2 of Year Finalist
With Dennis you better start tracing wires and look for a short or something before you burn the car down.
Thread Starter
Racer
Joined: Aug 2011
Posts: 377
Likes: 16
From: SMITHFIELD N C
There was an article on the repo switches at least a year back documenting the internal circuit breakers as being somewhat weak and kicking out, resulting in the headlights going out until the CB cooled off. I've checked firewall connections, cleaned the terminals at the bulbs, checked and cleaned terminals on the dimmer switch, tried a spare dimmer switch. All wiring is new. Headlights work fine with the original switch, just the dash dimmer part is no good due to wire being burned into. Problem only occurs with the repo switch.
Drifting
Joined: Jun 2009
Posts: 1,277
Likes: 275
From: Leo IN
LED headlights. For each headlight bucket (both bulbs lit on high beam) the ones I have use 4.25 amps with high beams on.
From what I recall, a standard low beam bulb is 55w, which comes out to 4.583 amps per bulb.
FWIW...
That said, have you checked out the other electrical items (switches, grounds, etc.)? How many amps are being consumed?
-- Joe
From what I recall, a standard low beam bulb is 55w, which comes out to 4.583 amps per bulb.
FWIW...
That said, have you checked out the other electrical items (switches, grounds, etc.)? How many amps are being consumed?
-- Joe
Team Owner
Joined: Jul 2006
Posts: 22,181
Likes: 4,178
From: Kannapolis NC
It's a fairly common problem with repro switches. Your choices are:
1.find an oem switch
2.keep trying different vendors until you find one that works.
3.Run the headlights directly from the 12v on the horn relay (or run wires from battery) and control them by the headlight switch by inserting a relay between the switch and the 12v supply you choose. Doing this will make your lights brighter and will cut the current going through the headlight switch by a lot. I mean A LOT.
4. Do the mod to make your lights roll over and come on via the headlight switch, which also eliminates the rollover switch. That involves changing out the stock motors and wiring. A kit is available to do that.
1.find an oem switch
2.keep trying different vendors until you find one that works.
3.Run the headlights directly from the 12v on the horn relay (or run wires from battery) and control them by the headlight switch by inserting a relay between the switch and the 12v supply you choose. Doing this will make your lights brighter and will cut the current going through the headlight switch by a lot. I mean A LOT.
4. Do the mod to make your lights roll over and come on via the headlight switch, which also eliminates the rollover switch. That involves changing out the stock motors and wiring. A kit is available to do that.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Thread Starter
Racer
Joined: Aug 2011
Posts: 377
Likes: 16
From: SMITHFIELD N C
The one I got came from LICS, but according to one source on the NCRS site, they all come from CC. Cannot verify this, though. Buns, are any of those you posted American made? I tried yesterday to locate a NOS switch on e-bay with no luck.
Thread Starter
Racer
Joined: Aug 2011
Posts: 377
Likes: 16
From: SMITHFIELD N C
65 GGvert, do you have some type of rough wiring diagram showing the configuration of wire and relay from the 12v horn relay to the light switch? Not exactly sure how this would be done and I'm sure others would be interested. TIA Al
Team Owner
Joined: Jul 2006
Posts: 22,181
Likes: 4,178
From: Kannapolis NC
Sent you a pm with instructions and included this link with a diagram in post #5.
Melting Slicks
Joined: Jul 2004
Posts: 2,867
Likes: 195
From: Maryland