83 Eldo 4.1 Climate Control only lights sometimes
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HT4100 4.1, 4.5, 4.9 Discussion, 83 Eldo 4.1 Climate Control only lights sometimes in Cadillac Engine Technical Discussion; Hello all, my recently purchased 83 Eldorado 4.1, Is also a little strange with the Fuel data screen and the ...
  1. #1
    hendrob is offline Cadillac Owners Fanatic
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    83 Eldo 4.1 Climate Control only lights sometimes

    Hello all, my recently purchased 83 Eldorado 4.1, Is also a little strange with the Fuel data screen and the Climate Control Screen.
    They only activate at start up when they feel like it. Sometimes on start up they just stay blank, other times they work perfect. If I shut the car off and restart, sometimes they will light up and work fine... Anyone else ever experience the same problems ? Thanks, Bob

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    carnut is online now Cadillac Owners Master
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    Re: 83 Eldo 4.1 Climate Control only lights sometimes

    My first thought is a loose connection at the rear of the climate control head or a faulty solder connection within the control head. Is your speedometer digital or analog? Get another control head from a wreck to swap and see if it changes.

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    hendrob is offline Cadillac Owners Fanatic
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    Thread Starter

    Re: 83 Eldo 4.1 Climate Control only lights sometimes

    Hi Carnut, yes I was thinking along the same lines, my speedo is digital, it works fine. I have the same solder joint issue with the radio display, when cool out, you can't tell what station you are on, However last few days have been in the mid 90s here and when you get in the hot car and turn her on the radio display is perfect. I think some cracked solder joints in the display are making good contact in the heat. Gonna pull the radio and check the joints, will check the climate control at the same time and advise of my findings. Thanks again !
    Bob

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