1991-740 wagon radio problems

Discussion in 'Volvo 740' started by mgb, Nov 18, 2006.

  1. mgb

    mgb Guest

    I live in rainy Victoria BC and have recently started to experience a radio
    problem.

    The left rear storage compartment in my wagon is where the motor for the
    antenna is. With so much rain lately (and a small leak through a cracked
    tail light lens!!), the storage compartment was half filled with water! I've
    drained it and dried everything out and things still work mechanically (ie,
    the antenna goes up and down), but there is a very loud and annoying noise
    coming from the radio speakers. All the antenna connections were dry and
    tight.

    Whenever the engine is turned on, I hear a very loud buzzing sound (over the
    normal station reception), and this is even worse when I operate the
    electric windows, or when I accelerate.

    Does this have anything to do with the antenna or have I been chasing the
    wrong issue?

    Suggestions?

    Thanks
     
    mgb, Nov 18, 2006
    #1
  2. mgb

    Joe D Guest

    There is a radio interferrence suppression relay under the hood. If
    yor car is a non-turbo, it is attached to the frame holcing the coolnt
    tank on the right hand fender well. If you own a turbo, the relay is
    in approximately the same position on the left hand fender well.

    I would check that item and the connections.

    joe
     
    Joe D, Nov 18, 2006
    #2
  3. corrosion on you leads most likely
     
    John Robertson, Nov 20, 2006
    #3
  4. mgb

    Tunku Guest

    Check the ariel is still connected to the lead for the radio. Also there
    should be a grommet type thing at the bottow of the well, it has a flap
    of rubber over a hole to let water drain out. Make sure it's not blocked
    with debris.
     
    Tunku, Nov 20, 2006
    #4
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