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Eck
Official CCB Member
Joined: Thu Oct 25, 2012 9:33 pm Posts: 2460
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Brake lights not working
As the post says, brake lights aren't working.
Fuses are ok Emergency flashers and turn signals working Running lights working Bulbs not burnt out Connector at brake pedal on
What can it be?
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_________________ 69 Wagon, 351W, Explorer EFI & Serpentine, ZF5, 35" tires, 3.5 SL, 2 BL, WARN 8274
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Thu May 25, 2017 9:21 pm |
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Viperwolf1
Official CCB Member
Joined: Tue May 07, 2013 10:37 pm Posts: 1485
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Re: Brake lights not working
It could be the brake light switch. Test it.
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Thu May 25, 2017 10:17 pm |
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Digger
Official CCB Member
Joined: Fri Jun 21, 2013 8:53 pm Posts: 1276
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Re: Brake lights not working
Brake light switch. You could check by connecting the two leads at the brake light switch to each other.
_________________ Cummins R2.8 diesel, ZF5, AtlasII, HP44/BB9, ARBs, coiled / linked suspension, 37" KO2s, full cage, bumpers, etc. Build Thread:
Average 23.5 mpg, Best tank: 25.1 mpg
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Thu May 25, 2017 10:18 pm |
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Eck
Official CCB Member
Joined: Thu Oct 25, 2012 9:33 pm Posts: 2460
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Re: Brake lights not working
Thanks- will jump it in the morning.
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_________________ 69 Wagon, 351W, Explorer EFI & Serpentine, ZF5, 35" tires, 3.5 SL, 2 BL, WARN 8274
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Thu May 25, 2017 10:24 pm |
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Eck
Official CCB Member
Joined: Thu Oct 25, 2012 9:33 pm Posts: 2460
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Re: Brake lights not working
So the brake light switch itself is working. I also had gotten a new one to try that and it's working. Both of them only work when I engage them by hand. Once I put it on the pedal assembly, I get nothing. I've adjusted the brake pedal pushrod out as far as it will go to take all slip out of the pedal and I still can't get it to work. Any ideas?
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_________________ 69 Wagon, 351W, Explorer EFI & Serpentine, ZF5, 35" tires, 3.5 SL, 2 BL, WARN 8274
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Fri May 26, 2017 10:25 am |
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Kinder
Official CCB Member
Joined: Wed Sep 29, 2010 10:03 pm Posts: 4371 Images: 0 Location: Parker, CO
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Re: Brake lights not working
If everything else is good then your switch isn't making contact, try a very thin shim between the contact plate and the switch, say the thickness of a old school fuse lid.
_________________ Best to Date MPG: 26.6
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Fri May 26, 2017 12:27 pm |
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Eck
Official CCB Member
Joined: Thu Oct 25, 2012 9:33 pm Posts: 2460
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Re: Brake lights not working
I shortened the distance by wrapping the end of the shaft in some electrical tape and it now works. Might mess with a better MacGuyver fix down the road.
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_________________ 69 Wagon, 351W, Explorer EFI & Serpentine, ZF5, 35" tires, 3.5 SL, 2 BL, WARN 8274
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Fri May 26, 2017 12:34 pm |
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BOBS 2 68S
Official CCB Member
Joined: Sun Aug 04, 2013 2:19 pm Posts: 375 Location: Hudson
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Re: Brake lights not working
I had a short in the turn signal wiring after replacing the turn signal canceler. Fixed the short and got my brake lights back.
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Sat May 27, 2017 5:44 am |
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landshark
Official CCB Member
Joined: Fri Oct 14, 2011 12:16 am Posts: 3942 Location: Denver, Wash Park Area
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Re: Brake lights not working
I had the same issue, ended up spot welding a really thin piece of metal to the brake light switch plate in the red one.
_________________ 1976 Bronco "Green, Yellow, whatever", 1969 Bronco "Red", 1972 Bronco Stocker "Kind of Blue/Grayish"
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Sat May 27, 2017 10:18 am |
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Eck
Official CCB Member
Joined: Thu Oct 25, 2012 9:33 pm Posts: 2460
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Re: Brake lights not working
_________________ 69 Wagon, 351W, Explorer EFI & Serpentine, ZF5, 35" tires, 3.5 SL, 2 BL, WARN 8274
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Sat May 27, 2017 10:23 am |
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Viperwolf1
Official CCB Member
Joined: Tue May 07, 2013 10:37 pm Posts: 1485
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Re: Brake lights not working
You just need to bend the plate in the switch slightly.
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Sat May 27, 2017 10:52 am |
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Eck
Official CCB Member
Joined: Thu Oct 25, 2012 9:33 pm Posts: 2460
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Re: Brake lights not working
So I tried to see if I could bend the plate on the switch and I couldn't really figure out how to do it as its the thickest part on the switch and so I had nothing to really pry against. It proved much easier to just take the brake pedal rod off and add a bead of weld to the end of it to thicken it up. The tape was definitely a temporary fix as I realized I had no brake lights again on my way home from throwing around Wilma. Bead of weld did the trick and I assume will be a permanent fix...
_________________ 69 Wagon, 351W, Explorer EFI & Serpentine, ZF5, 35" tires, 3.5 SL, 2 BL, WARN 8274
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Thu Jun 01, 2017 12:57 pm |
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