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front strobes not working

Discussion in 'Strobe Lighting' started by John O., Jul 13, 2014.

  1. John O.

    John O. Member
    Messages: 45

    I just purchased a 2006 F-350 it has strobe lights in the front headlights and the rear reverse lights. They both turn on from one of the four up fitter switches. The front strobes turn on and work properly every time the front however are hit or miss. Sometimes the fronts will work other times they will not. Any ideas or suggestions of where to start?
  2. dieselss

    dieselss PlowSite Fanatic
    Messages: 11,400

    Try switching the wires at the power box. Fronts and rears and see what happens.
  3. tjctransport

    tjctransport PlowSite.com Addict
    Messages: 1,390

    it could be bad tubes, or bad connectors. very rarely do the boxes go bad.
  4. John O.

    John O. Member
    Messages: 45

    it has me scratching my head because when they do turn on they work fine and can be left on for a long time. It is just a gamble each time i turn them on if they will start up the first time.
  5. 1olddogtwo

    1olddogtwo PlowSite Fanatic
    Messages: 12,174

    What kind of power pack?
  6. blueline38

    blueline38 Senior Member
    Messages: 436


    Do you happen to notice the weather conditions when they don't work? It sounds like a connection. If it is damp out and moisture get's in the connection, the system will fault and won't allow them to fire. If the air is dry, there is no problem and they will work.

    Try unplugging the lights, make sure the connections are dry and coat the plug and wires in dielectric grease.
  7. John O.

    John O. Member
    Messages: 45

    just found the power pack it was hidden well. "tomar" is what is on the power pack. They will randomly not work but the front only. as for weather condtions there has been no rain lately no moisture and I park in my shop.
  8. tjctransport

    tjctransport PlowSite.com Addict
    Messages: 1,390

    switch wires front to rear and see if the problem follows the switch. if it switches to the rear, the problem is in the box. if it stays in the front it is in the wires or tubes.
  9. John O.

    John O. Member
    Messages: 45

    are those decent strobes tomar? or do they typically have these issues.
  10. magilly00

    magilly00 Junior Member
    from Indiana
    Messages: 3

    Any update on the electrical issue?
  11. SnowGuy73

    SnowGuy73 PlowSite Fanatic
    Messages: 24,870

    Moisture in the connection....
  12. John O.

    John O. Member
    Messages: 45

    no good news. I do not feel it is a moisture issue truck stays in garage and we have had no rain lately in chicago. I checked the connections and everything is in tack......bad strobe box?
  13. Whiffyspark

    Whiffyspark 2000 Club Member
    from SOMD
    Messages: 2,403

    Did you try switching them?
  14. nwilson1211

    nwilson1211 Junior Member
    Messages: 25

    I had a similar problem on my rears in my last plow truck. Turns out that the connectors were corroded and subsequently would intermittently short causing them to flash sometimes and sometimes not. I ended up cutting the connectors off and soldiering each wire and covering with shrink tubing.

    If it turns out to be the box, I have a bunch of Federal Signal strobe boxes & would sell you one cheap if you need. Good luck.