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unimount plow truck headlight ?

Discussion in 'Western Plows Discussion' started by wishingtoplow, Sep 22, 2013.

  1. wishingtoplow

    wishingtoplow Member
    from Pa
    Messages: 86

    I have a 01 dodge 2500 with a western unimount. I have the right headlight wiring but my passenger headlight is dim on low and high beam. the driver side headlight is nice and bright. Anyone know where I should look exactly?or where to test?
     
  2. Western1

    Western1 Senior Member
    from MI.
    Messages: 674

    I believe the proper harness should have 4 headlight relays. How many headlight relays do you have?
     
  3. wishingtoplow

    wishingtoplow Member
    from Pa
    Messages: 86

    i have 4 relays
     
  4. rjigto4oje

    rjigto4oje PlowSite.com Addict
    Messages: 1,282

    could be a ground simple enough to figure out
     
  5. wishingtoplow

    wishingtoplow Member
    from Pa
    Messages: 86

    where is the ground for the passenger side headlight
     
  6. Dogplow Dodge

    Dogplow Dodge 2000 Club Member
    from NJ
    Messages: 2,875

    Did you disassemble the connector behind the bulb ? They get all kind of nasty in there, and the connections tend to fail in the socket, as salt and moisture gets jammed in there. I completely disassembled mine, cleaned or replaced the sockets, and greased them up with dielectric grease to prevent it from re-occurring.


    Sounds like a bad ground at the lamp, but it could be also at the relay where it runs through. Mine isn't set up that way, as I did custom relays for mine. Bad grounds give you dim lights, for the most part. It's a good practice to disassemble the relays / plugs, clean all the terminals, dielectric grease the newly cleaned surfaces and reassemble. If it's a bunch of wires like mine were, you could just do one at a time until you get them all.

    Maintenance on any plow truck is essential for reliability.
     
  7. rjigto4oje

    rjigto4oje PlowSite.com Addict
    Messages: 1,282

    If all else fails run a separate ground wire I also forgot yo mention ive seen a bad splice drivers side were it crosses over to the passenger side
     
  8. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,924

    Start at the pass headlamp. Take it apart and ck the internals then proceed from there