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replace temperature gauge
Where is the engin temperature gauge sensor located on the 1999 cadillac catera?
Most likely you have a faulty temperature sending unit, which is located on the front top of the engine block. Before you do this procedure, make sure there are no lose or broken wires from the sending unit, to the temperature gauge on the front dash board.
The 1999 Cadillac normal coolant temperature gauge reading should be 180 degrees. A 195 degrees thermostat could be used, causing the temperature gauge to read 195.
try changing the sending unit for the temp gauge
It depends on the setpoint of the thermostat.
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Just to the side of the thermostat housing.
There is a battery light above the engine temperature gauge
broken fuel gauage sensor or possibly a broken fuel pump indicator
My Altima had that problem and it was the water pump going out. It started with temperature gauge was moving, but then it started leaking and finally the heater stopped being warm at idle.
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