Results 1 to 12 of 12

Thread: headlights randomly stopped working

  1. #1

    Array
    Status
    Offline
    Join Date
    10-27-2013
    Posts
    5
    Location

    whynot, north Carolina
    Vehicle

    1986 Dodge D-50
    Engine

    I.D.K.?

    headlights randomly stopped working

    Yes I checked the bulbs it's not the fuses.

  2. #2



    Array
    Status
    Offline
    Join Date
    03-16-2011
    Posts
    3,803
    Location

    Sacramento, CA
    Vehicle

    1979 Dodge D-50
    Engine

    Chevy V6
    So does anything happen when you wiggle the switch? Or is it come on and off when hitting bumps? Need a bit more info. It could be the switch getting hot, could be a bad plug, loose wire, bad body ground, but I would guess it's the high beam switch.
    Members come and members go, But the board keeps track of them.
    Find me on FaceBook
    clicking HERE.

    Or look on YouTube Click Here.
    http://mobilemillwright.com

  3. #3

    Array
    Status
    Offline
    Join Date
    04-10-2011
    Posts
    256
    Location

    WA
    Vehicle

    1990 Mitsubishi Mighty Max
    Engine

    6G72
    Also, is it both high and low beams?
    1990 MM 4x4 3.0
    1991 MM 4x4 3.0 Diamonte
    1994 MM 2wd (work in progress)

  4. #4

    Array
    Status
    Offline
    Join Date
    10-27-2013
    Posts
    5
    Location

    whynot, north Carolina
    Vehicle

    1986 Dodge D-50
    Engine

    I.D.K.?
    Iwent out yesterday and started the truck. Turned in my lights not on but so the dash light would come on and it worked fine. However when I switched them to turn on my headlights nothing no low or high beams.

  5. #5




    Array
    Status
    Offline
    Join Date
    03-20-2011
    Posts
    4,851
    Location

    Pittsburgh, PA
    Vehicle

    1980 Dodge D-50
    Engine

    G54B
    Check the tension on the headlight fuse clips - over time they lose tension and the lights quit working. Also check the grounds from the headlights to ground. Do the rest of the lights come on on the outside of the truck?
    Pennyman1
    The best Dodge that Dodge never made
    Living the D-50 lifestyle since 1980

  6. #6

    Array
    Status
    Offline
    Join Date
    10-27-2013
    Posts
    5
    Location

    whynot, north Carolina
    Vehicle

    1986 Dodge D-50
    Engine

    I.D.K.?
    all the other lights work the headlights just won't come on when its really cold

  7. #7

    Array
    Status
    Offline
    Join Date
    05-15-2014
    Posts
    25
    Location

    United States
    Vehicle

    1985 Mitsubishi Mighty Max
    Engine

    4D55
    Hey guys, I'm having a similar problem now.

    1. Running lights and dash lights work when switched on
    2. Low beams DON'T work
    3. High beams do work
    4. Fuses are all ok
    5. Opened the headlight relay (Mitsubishi MB046436 Nippondenso 056700-3060) and the switches are functioning properly

    Any advice on next steps would be great guys.

    Thanks!

  8. #8

    Array
    Status
    Offline
    Join Date
    06-15-2014
    Posts
    6,059
    Location

    Adelaide, South Australia
    Vehicle

    1985 Mitsubishi L200
    Engine

    G63B
    Check power out of the relays to the low beams. Just because you can hear the relays kick on doesn't mean the contacts aren't roasted. I'd be putting even odds on 86d50's truck having a similar issue. The relay is almost dead but as it warms up, it makes contact. Bigger alternator time all round methinks, add independent relay and headlight harnesses so the circuits are getting full current which will make the headlights more efficient and take strain off the rest of the electrical system. When you're ready for a H4 halogen upgrade, all the work is already done
    support the forum that supports you - join and donate to MightyRam50.Net today! donations unlock the edit function

  9. #9

    Array
    Status
    Offline
    Join Date
    05-15-2014
    Posts
    25
    Location

    United States
    Vehicle

    1985 Mitsubishi Mighty Max
    Engine

    4D55
    Do you know which alternator would suffice? My 4d55 has the oil connection on the back which has always been a problem from the beginning. I definitely agree it is under powered, the wipers are in slow mo when the lights are on.

  10. #10

    Array
    Status
    Offline
    Join Date
    06-15-2014
    Posts
    6,059
    Location

    Adelaide, South Australia
    Vehicle

    1985 Mitsubishi L200
    Engine

    G63B
    Need one of the diesel gurus to step in on this one. I have seen the oil housing on the backs of the 4D55/56 alternators and it looks like one of the dodgiest/scary ideas Mitsubishi has used.
    support the forum that supports you - join and donate to MightyRam50.Net today! donations unlock the edit function

  11. #11




    Array
    Status
    Offline
    Join Date
    03-20-2011
    Posts
    4,851
    Location

    Pittsburgh, PA
    Vehicle

    1980 Dodge D-50
    Engine

    G54B
    the diesel alternators have a vacuum pump on the back for the power brake booster, as there is no vacuum off the motor.
    Pennyman1
    The best Dodge that Dodge never made
    Living the D-50 lifestyle since 1980

  12. #12

    Array
    Status
    Offline
    Join Date
    06-15-2014
    Posts
    6,059
    Location

    Adelaide, South Australia
    Vehicle

    1985 Mitsubishi L200
    Engine

    G63B
    Quote Originally Posted by pennyman1 View Post
    the diesel alternators have a vacuum pump on the back for the power brake booster, as there is no vacuum off the motor.
    Well I learned sumpin Actually I learned 2 things, maybe 3...(like offering my valuable input when I probably shouldn't lol)
    support the forum that supports you - join and donate to MightyRam50.Net today! donations unlock the edit function

Tags for this Thread

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •