brake lights

  1. P

    Brake light grounding

    Hello, 1978 GMC K25 fleetside. After doing quite a bit of work to the truck, I now have no brake lights. I did a new ignition switch, ignition lock cylinder, and had the box pulled a few feet back for paint. All lights worked fine before this. Tails and Turn signals still work fine. I jumped the...
  2. P

    Brake light issue I can't get smart to

    Hello, '78 K25, and I don't have brake lights anymore. I did a quite a bit of work to the truck, but a few things that may be of interest are: replaced the ignition switch, pulled the bed off for a while to paint it, and had the steering wheel pulled to replace ignition lock cylinder. Went back...
  3. Fjordlander

    Brake light issues

    Hello! The brake lights stopped working in my 76 K10 but all other lights continued to work fine. The brake light switch was in rough shape so I replaced it but instead of the brake lights working, now the brake light bulbs flash instead of the indicator bulbs when the blinker is turned on. I've...
  4. H

    Break lights

    My brake lights seem to come on randomly. But if I pull on the brake lever they will go off. Is there supposed to be a return spring on the brake lever assembly or is my master cylinder unit just that wore out?
  5. H

    Break Light Wiring for a 84 k5 350sb

    Howdy y'all! I'm semi new to the world of squares. I don't know much about 'em, but I'm learning as I go. I still have lots to learn, especially with wiring. My sister bought an '84 K5 a few weeks ago and the drivers side tail/brake light ain't working to good. Hit a bump, it works, hit...
    • Howdy225
    • Thread
    • 1984 84 k5 bad ground brake lights k5 blazer need help new here squarebody wiring
    • Replies: 10
    • Forum: Introduction
  6. usnrcwo

    Brake lights staying on

    So, I've developed a new problem. When I stop the truck and turn it off, the back brake lights stay on. If I pump the brake pedal once, they shut off. If I forget, the battery drains. Any ideas what might be causing that? Some sort of common short? Appreciate any advice.
  7. Z

    New to Square body.. electrical nightmare...

    New to the forum, new to chevy square body's and not the most experienced mechanic. I bought a 1983 C30 to build a classic welding rig out of, its got some problems so I'm sure I'll be here a lot. Starting off, its definitely got some wiring issues, headlights are not working, only the running...

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