82 Eldo Digital Dash likes to dance
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HT4100 4.1, 4.5, 4.9 Discussion, 82 Eldo Digital Dash likes to dance in Cadillac Engine Technical Discussion; Working on a 1982 Eldorado. The digital dash works with just the key on, so the fuel gauge says 2 ...
  1. #1
    edhhjr is offline Cadillac Owners Member
    Automobile(s): 1982 Eldorado
    Join Date
    Dec 2012
    Posts
    7

    82 Eldo Digital Dash likes to dance

    Working on a 1982 Eldorado. The digital dash works with just the key on, so the fuel gauge says 2 (just put in a new fuel pump with a couple gallons of gas), the speedo says zero, and there's a line - for the mileage. The second it starts, they all go 88 888 etc. Then they all just do random dashes and lines. Any clues. Is there a place on this board covering digital dashes, couldn't find it. Thanks for any input. Ed

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  3. #2
    edhhjr is offline Cadillac Owners Member
    Automobile(s): 1982 Eldorado
    Join Date
    Dec 2012
    Posts
    7

    Re: 82 Eldo Digital Dash likes to dance

    No one? Checked every wire and fuse I could get my hands on and still doesn't work right. I noticed it's starting to do it with just the key on, but very slow and not as random. So it jumbles every 2 seconds instead of none stop. One other thing I notice, the Stop Engine Temperature idiot light comes on as long as the door is open and key buzzer doing it's buzzing. Close the door and the light goes out, engine stone cold. Really think I need a good wiring schematic for the digital dash, which seems impossible to find. Ed

  4. #3
    dennis93coupe's Avatar
    dennis93coupe is offline Cadillac Owners Connoisseur
    Automobile(s): 1993 Coupe Deville 2006 XLR Infrared, Ebony
    Join Date
    Feb 2010
    Location
    Orange County, CA
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    59
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    2,464

    Re: 82 Eldo Digital Dash likes to dance

    FSM (factory service manual) ebay is your friend

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