Parking brake causing noise

Discussion in 'CB Radio Forum' started by Swift09, Aug 29, 2020.

  1. Ridgeline

    Ridgeline Road Train Member

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    Goes to or comes from?

    Well I didn’t think of that but normally for that time period vehicle the DLR come from a small resistor unit that lowers the voltage to the headlights.
     
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  3. Swift09

    Swift09 Light Load Member

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    The headlights are aftermarket. They use bulbs though. So what's the fix? Jack the radiator cap up?
     
  4. Roberts450

    Roberts450 Road Train Member

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    Is it a Canadian truck or do you go to Canada at all?? Do the headlights come on when you release the parking brake?
     
    AModelCat Thanks this.
  5. Swift09

    Swift09 Light Load Member

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    To my knowledge it's an American truck. No headlights, but running lights. I think those are on all the time though.
     
  6. skellr

    skellr Road Train Member

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    Yeah, the radiator cap sounds like a reasonable approach considering the responses to your question.

    Pop off the radiator cap, wrap your lips around the neck and suck hard.
     
  7. Swift09

    Swift09 Light Load Member

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    It's a saying for getting a new truck. You jack the radiator cap up and drive a new truck under it. I mean we're just talking about CB noise.
     
  8. Meteorgray

    Meteorgray Heavy Load Member

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    Maybe the applied brake drums/discs are providing some system RF bonding of the "ground plane", which is reduced when they are released?
     
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