ford truck,trailer light help

Discussion in 'Trucks and Trailers' started by s and s mowing, Feb 26, 2005.

  1. s and s mowing

    s and s mowing LawnSite Member
    from ky
    Messages: 241

    i just went to napa and bought the harness that just plugs in and presto you have trailer i hooked up and parking lights work fine,but when you signal,the marker lights blink along with the marker part of taillight.then when you hit the brake the marker lights again brighten.what the hell is the deal,same trailer i had last year with a ford ranger,with the same plug type setup on ranger.somwone told me something about a heavy duty flasher on the 150.any help please
  2. jimslawns

    jimslawns LawnSite Senior Member
    Messages: 283

    check your ground, you are probably getting a back feed
  3. Smalltimer1

    Smalltimer1 LawnSite Bronze Member
    Messages: 1,223

    You're right, there is a loose ground somewhere in the trailer circuit.

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