We need help , im not a mechanic and don't know anyone that is .
all i have is google and im not finding the answers .  We have a
1999 Toyota Camry . Its a good running car but , the last month
or so the Temperature Gauge has been going up and down from
middle of the gauge to above the red mark . The last week or so
it stays on Red but its not overheating . I constantly stop and
pull over to check if its over heating and its not . The car
runs fine but the Gauge still stays on red .  Yesterday we had
the the Temperature Gauge sensor and the Thermostat changed and
the Gauge still stays hot .  Im lost as to what it could be
because the car seems fine but the gauge floats near hot or on
hot all the time now .  Thank you ahead of time for any
information .