1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Dome light door switches. How to change without twisting wire?

Discussion in 'Tech Discussion' started by MisterB, Dec 4, 2019.

  1. MisterB

    MisterB Full Access Member

    Posts:
    261
    Likes Received:
    224
    Joined:
    Sep 9, 2019
    Location:
    Northwest
    First Name:
    AJ
    Truck Year:
    1980
    Truck Model:
    GMC K2500 4X4
    Engine Size:
    350
    My dome light works when I turn the headlight switch, but not when I open the doors. Both doors have switches.

    I started by loosening the passenger side switch, but I could tell as I unscrewed it, I could hear the power wire twisting inside, and it almost seems like there's resistance there. I just stopped and screwed it back in, because I don't want to mess it up.

    Sounds like I need two new door switches, but what's the procedure to remove and install the new ones so I don't twist the wire all around inside the door panel and have it snap off?

    Sent from my SM-N975U1 using Tapatalk
     
  2. TubeTruck

    TubeTruck Full Access Member

    Posts:
    257
    Likes Received:
    239
    Joined:
    Sep 4, 2019
    Location:
    Northern IL
    First Name:
    Denis
    Truck Year:
    1978, 1975
    Truck Model:
    Suburban K10, GMC K15
    Engine Size:
    350ci
    Haha, I just did this not even an hour ago and had the same question. Inquiring minds want to know.. though my fine light doesn't work with my switch. I got some figuring to do.
     
    MisterB likes this.
  3. 80BrownK10

    80BrownK10 Full Access Member

    Posts:
    134
    Likes Received:
    62
    Joined:
    Oct 22, 2019
    Location:
    Greenwood, SC
    First Name:
    Nate
    Truck Year:
    1980
    Truck Model:
    K10
    Engine Size:
    350
    I have never had an interior light. It's on my to-do list one day. It will probably start with the need for new switches.
     
  4. idahovette

    idahovette Full Access Member

    Age:
    70
    Posts:
    1,226
    Likes Received:
    1,145
    Joined:
    Aug 7, 2016
    Location:
    Weiser Idaho
    First Name:
    Perry
    Truck Year:
    1975-1979
    Truck Model:
    K20-K10
    Engine Size:
    350
    If you push the plunger in a little while unscrewing it the nut floats on the plunger??
     
    MisterB and Blue Ox like this.
  5. Charlie

    Charlie Mopar by Birth. Chevy by Choice.

    Posts:
    1,679
    Likes Received:
    714
    Joined:
    Aug 2, 2017
    Location:
    Euless, Texas
    First Name:
    Don
    Truck Year:
    1974
    Truck Model:
    Cheyenne 10 LWB
    Engine Size:
    350/TH350/AC/4 BBL Quadrajet
    I replaced mine not long ago. I connected wire, turned it counter clockwise for about 5 or 6 turns, then screwed in. Seemed to work ok.
     
    Last edited: Dec 5, 2019
    PrairieDrifter and MisterB like this.
  6. Blue Ox

    Blue Ox Turning Diesel Fuel Into Fun

    Posts:
    1,893
    Likes Received:
    2,266
    Joined:
    Mar 27, 2018
    Location:
    LI-NY
    First Name:
    Derek
    Truck Year:
    1985
    Truck Model:
    K20HD
    Engine Size:
    6.2L
    This.

    Hold the plunger with something while you turn the nut.
     
    Snoots and MisterB like this.
  7. bucket

    bucket Super Moderator Staff Member

    Age:
    38
    Posts:
    19,772
    Likes Received:
    4,661
    Joined:
    Aug 3, 2010
    Location:
    Usually not in Ohio
    First Name:
    Andy
    Truck Year:
    '77, '78, '79, '84, '88
    Truck Model:
    K5 thru K30
    Engine Size:
    350-454
    I always just use a socket on them, but give them a backwards "pre-twist" before threading them in.
     
    MisterB and TubeTruck like this.
  8. TubeTruck

    TubeTruck Full Access Member

    Posts:
    257
    Likes Received:
    239
    Joined:
    Sep 4, 2019
    Location:
    Northern IL
    First Name:
    Denis
    Truck Year:
    1978, 1975
    Truck Model:
    Suburban K10, GMC K15
    Engine Size:
    350ci
    That explains a lot. Mine are frozen solid lol
     
    Blue Ox likes this.
  9. Blue Ox

    Blue Ox Turning Diesel Fuel Into Fun

    Posts:
    1,893
    Likes Received:
    2,266
    Joined:
    Mar 27, 2018
    Location:
    LI-NY
    First Name:
    Derek
    Truck Year:
    1985
    Truck Model:
    K20HD
    Engine Size:
    6.2L
    Ummm, yeah. You might want to try some WD-40 or something.
     
  10. 79Scott

    79Scott Full Access Member

    Posts:
    74
    Likes Received:
    16
    Joined:
    Apr 19, 2015
    Location:
    N37°20’26” - W77°40’34
    First Name:
    Scott
    Truck Year:
    86
    Truck Model:
    C10-Silverado
    Engine Size:
    305ci
    I'm having a slightly different issue. I replaced the bulb for the cargo light last night. The switch I have (I believe its oem on the pillar near the drivers head) only has an option for cargo light or dome light so I always have a light on.... Didn't have time to look at the dimmer switch or door switches yet
     
  11. 75gmck25

    75gmck25 Full Access Member

    Posts:
    711
    Likes Received:
    358
    Joined:
    Oct 13, 2016
    Location:
    VA
    First Name:
    Bruce
    Truck Year:
    1975
    Truck Model:
    K25
    Engine Size:
    5.7
    IIRC, the way my cargo light switch works is that the dome light comes on with the door switch or headlight switch. Then, if the dome light is on and the cargo light switch is on, you get cargo light at the same time. The cargo light only comes on if the dome light is already on. And by the way, that cargo light bulb is really lame. It doesn't really do much to illuminate the bed.

    I have another related question - I got new door switches when I purchased an add-on interior light kit (from LMC?), but the switches have a smaller diameter threaded part than the OEM switches in my '75. They just push right through the original hole My old switches are rusty and don't always work, so I'd like to use new switches. Has anyone run across true replacement switches that have the right thread size?

    Bruce
     
  12. TubeTruck

    TubeTruck Full Access Member

    Posts:
    257
    Likes Received:
    239
    Joined:
    Sep 4, 2019
    Location:
    Northern IL
    First Name:
    Denis
    Truck Year:
    1978, 1975
    Truck Model:
    Suburban K10, GMC K15
    Engine Size:
    350ci
    Here we go. Dome lights don't work? Try this. Courtesy of Harbor Freight :anitoof:

    20191205_143656.jpg
     
    Snoots, bucket and Blue Ox like this.
  13. 80BrownK10

    80BrownK10 Full Access Member

    Posts:
    134
    Likes Received:
    62
    Joined:
    Oct 22, 2019
    Location:
    Greenwood, SC
    First Name:
    Nate
    Truck Year:
    1980
    Truck Model:
    K10
    Engine Size:
    350
    And those are free too!
     
    Snoots likes this.
  14. 79Scott

    79Scott Full Access Member

    Posts:
    74
    Likes Received:
    16
    Joined:
    Apr 19, 2015
    Location:
    N37°20’26” - W77°40’34
    First Name:
    Scott
    Truck Year:
    86
    Truck Model:
    C10-Silverado
    Engine Size:
    305ci
    lol, Awesome!
     
  15. TPISly-C10

    TPISly-C10 Member

    Posts:
    40
    Likes Received:
    40
    Joined:
    Apr 1, 2019
    Location:
    Boucherville QC Canada
    First Name:
    Sly
    Truck Year:
    1986
    Truck Model:
    C-10 shortbox
    Engine Size:
    LQ4 6.0L
    just change mine last week...the nuts is independant from the connector so don't be affraid to unbolt it! :)
     
    MisterB likes this.

Share This Page