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BUSY BOLTERS Are you one?  The Shop Area
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Jul 21st, 2025 | | | | Joined: Mar 2009 Posts: 13 'Bolter | | 'Bolter Joined: Mar 2009 Posts: 13 | I have completely rewired my 63 C10 and put on an aftermarket (speedway motors) turn signal switch. Everything was working properly until this weekend when the brake lights stopped working.
I have power going in and coming out of the brake light switch. I have power going into the turn signal switch on the proper line. EVERYTHING else works (turn signals, flashers, tail lights). The stop light fuse is good as well.
The only work I did recently was replacing the cowl vent seal. I know that is close to the wiring, but surely that could not cause any issue like this.
I am running out of things to check so any suggestions would be appreciated.
'63 C10
-Alan-
| | | | | Joined: Dec 2008 Posts: 319 Shop Shark | | Shop Shark Joined: Dec 2008 Posts: 319 | I've lost the tail lights on my '65 a couple times. Found the problem as a bad connection at the wiring connector on the firewall. Unplug and re-plug a couple times to get it to work. I'll do a better job during restoration.
Don't know if the '63 is the same...?
If you can't fix it with a hammer and screwdriver, you need a bigger hammer.1965 Chevy C10 | | | | | Joined: Apr 2005 Posts: 7,442 Bolter | | Bolter Joined: Apr 2005 Posts: 7,442 |
Martin
'62 Chevy C-10 Stepside Shortbed (Restomod in progress)
'47 Chevy 3100 5 Window (long term project)
‘65 Chevy Biscayne (Emily)
‘39 Dodge Business Coupe (Clarence)
“I fought the law and the law won" now I are a retired one!
Support those brave men/women who stand the "Thin Blue Line"! Hug a cop!
USAF 1965-1969 Weather Observation Tech (I got paid to look at the clouds)
| | | | | Joined: Jul 2015 Posts: 37 Wrench Fetcher | | Wrench Fetcher Joined: Jul 2015 Posts: 37 | I ran into that several times while rewiring. It was always the plug connection at the firewall with the plug that the tail lights go to. They can come loose while working, or if it's not snug, the brake lights won't come on. To check mine by myself I wedged a stick against the brake pedal and the seat to depress the brakes. I don't think it would be the bulbs because it's unlikely, although not impossible, for both to go out at the same time. If it's not the plug then check the brake pedal to make sure it is engaging the brake light switch when depressed. If you did any work under there while wiring you might have knocked the connection loose. Hope this helps.
63 Chevy Fleetside Rat Rod
67 Pontiac GTO
| | | | | Joined: Mar 2009 Posts: 13 'Bolter | | 'Bolter Joined: Mar 2009 Posts: 13 | Well it turned out that the "new" turn signal switch I had installed shorted on the brake circuit. Replaced it with another new switch and the problem was resolved.
Thanks for all of the helpful comments!
'63 C10
-Alan-
| | | | | Joined: Dec 2013 Posts: 23 'Bolter | | 'Bolter Joined: Dec 2013 Posts: 23 | Do you have power at the lights themselves I just had a issue with no tail lights come to find out both bulbs were blown (at the same time) who'd of thunk that!
Bob
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