Engine Coolant Temp.Gage

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Cadillac Catera and Cimarron Forum Discussion, Engine Coolant Temp.Gage in Past Cadillac Vehicle Discussion; Engine Coolant Temp.Gage doesnt work - its dead on the dashboard. I'm guessing this is the thermostat? My 1998 catera's ...
  1. #1
    Enz is offline Cadillac Owners Member
    Automobile(s): Cadillac
    Join Date
    Jul 2007

    Engine Coolant Temp.Gage

    Engine Coolant Temp.Gage doesnt work - its dead on the dashboard.

    I'm guessing this is the thermostat?
    My 1998 catera's dash-indicator reads nil - doesnt move.

    The car runs as expected, even added a little more engine coolant. Any suggestions to the following: Where to locate/replace thermostat - is it under the hood? Is it possibly a fuse or relay? - but those seem ok, I checked those under stearing column and hood.


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  3. #2
    Army_MP_From_MO's Avatar
    Army_MP_From_MO is offline Cadillac Owners Fanatic
    Automobile(s): 1999 Cadillac
    Join Date
    Mar 2008
    El Paso, Texas, United States

    Re: Engine Coolant Temp.Gage

    Don't go out and grab a thermostat just yet. Your thermostat is just a little valve that opens and closes when it reaches a certain temp. I'd bet it's a sensor, however, I don't have a clue where it's located. I'm sure someone will help you with the location.

  4. #3
    cateraowner is offline Cadillac Owners Fanatic
    Automobile(s): Cadillac
    Join Date
    Oct 2007

    Re: Engine Coolant Temp.Gage

    it deffinatly isn't your thermostat. it has nothing to do with the guage.

    the temperature sensor is located underneath the intake manifold in the coolant bridge.

    best thing to do is try and get your hand on a scan tool that has a temperature readout. if you see it get warmer as the car runs then there is something wrong with you dash readout. so wiring, relay or fuses.

    good luck.. let us know what you find

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