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HELP!! Brake Lights Stay On..

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 90blzr, Jul 4, 2001.

  1. 90blzr

    90blzr 1/2 ton status

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    Ok, my brake lights are staying on. They have been "sticking" for about the last month, I get out and notice the brake lights are on, so I just wiggle the pedal a little and they go off. Now today I noticed they stay on and I cant get them to go off. How do I fix this? I know there is a brake light switch under the dash,( I found that while hookind up my trailer brake controller.) I tested both sides of the switch with a test light and both terminals are getting power, that is why I am thinking that it just needs to be adjusted. Only one terminal should have power and the other gets power when the switch is activated, therefore I believe its an adjustment issue. How do you adjust this thing? Where is the adjuster located? I have just unplugged the switch for now, so I have no brake lights, so I need to resolve this ASAP. Thanks!
     
  2. POWERMAD

    POWERMAD 1/2 ton status

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    I haven't messed with a 90 but on mine there is nuts that are on the switch that is used to adjust the switch.


    my truck's not dirty, it's earth tone paint
     
  3. Can Can

    Can Can Pusher Man Staff Member Super Moderator

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    Instead of spending a bunch of time trying to adjust it, why not just replace the switch with a new one? A few years ago I replaced the brake switch in a car I used to own- it was doing the same "sticky" thing that yours is. After removing and examining the old switch, I found that the pivot point was worn and was actually binding a little bit, thus the sticking.

    From what I remember, the part was dirt cheap and really simple to replace.

    Just a thought[​IMG]



    <font color=red>PHOTO ALBUM-</font color=red> <A target="_blank" HREF=http://albums.photopoint.com/j/AlbumList?u=1289798>http://albums.photopoint.com/j/AlbumList?u=1289798</A>.......<font color=blue>TRUCK & HIKING PICS</font color=blue>
     
  4. 90blzr

    90blzr 1/2 ton status

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    So if I buy a new one there isnt any adjustment to make? Maybe I'll go by the dealership tomorrow.
     
  5. jimmyjack

    jimmyjack 1/2 ton status

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    I bought mine at Autozone for 4.99

    "My blazer may be slow, but it goes faster at higher speeds"
    <A target="_blank" HREF=http://community.webshots.com/user/blazerk5>http://community.webshots.com/user/blazerk5</A>
    Jim
     
  6. 90blzr

    90blzr 1/2 ton status

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    I like that even better!! Did you have to adjust it when you put it in?
     
  7. jimmyjack

    jimmyjack 1/2 ton status

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    Yeh they're speed nuts so I just pushed it in and out til the brake lights worked, took all of 5 minutes

    "My blazer may be slow, but it goes faster at higher speeds"
    <A target="_blank" HREF=http://community.webshots.com/user/blazerk5>http://community.webshots.com/user/blazerk5</A>
    Jim
     
  8. dyeager535

    dyeager535 1 ton status Premium Member

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    Maybe the switch just moved out too far as is. All you have to do is push the thing in until it makes contact with the brake pedal. With the plunger out (pedal depressed) the light should be on obviously. If it is adjusted correctly, of course replace it. But its so easy to check, its not worth replacing if its not broke!

    Dorian
    My tech/links page: <A target="_blank" HREF=http://www.dorianyeager.com/index2.html>http://www.dorianyeager.com/index2.html</A>
    No anti-theft measures on your truck? No pity when its stolen
     
  9. Emmettology 101

    Emmettology 101 3/4 ton status

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    Just adjust it, it isn't hard.

    <font color=green>MIKE</font color=green> - "Hukd on fawnics,werkd fer me!"
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