Bad t-stat, bad gauge, bad temp. sending unit, low coolant, bad radiator cap all come to mind.
Coolant condition will tell you something else too. It could be the coolant sensor is caked with sludge from a poorly maintained system. It would read a short all the time which pegs the gauge. Also could be a shorted lead in the harness or shorted board on gauge cluster
Temperature.
instrument cluster needs to come out and apart to gain access and replace gauge
The sensor for the heat gauge on a 1994 Ford Ranger XLT is typically located on the engine block, near the thermostat housing. It is often a threaded unit that screws directly into the engine and reads the temperature of the coolant. This sensor sends the temperature data to the gauge on the dashboard, allowing the driver to monitor the engine's operating temperature.
On a 1994 Toyota Town Ace, the temperature sending unit is typically located near the engine block, often on or near the thermostat housing. It is responsible for monitoring the engine coolant temperature and sending that information to the gauge on the dashboard. For precise location, always refer to the vehicle's service manual or consult a professional mechanic.
Temperature Gauge Sending Unit The sending unit is located in the front section of the manifold in the vicinity of the thermostat.
To fix the temperature gauge not working in a 1994 Dodge Shadow, start by checking the fuse related to the gauge cluster to ensure it's not blown. Next, inspect the temperature sending unit, which is located near the engine coolant outlet; replace it if it's faulty. Additionally, verify the wiring connections to the gauge and the sending unit for any damage or corrosion. If these steps don't resolve the issue, the problem may lie within the gauge itself or the engine control module.
195 to 210 what temperature thermostat do you have
usually on the left of the engine between the first two spark plugs
Mine runs around O & R on the gauge.
The sensor is right behind the thermostat housing.
That is the coolant sensor. Not the one for the temperature gauge in the dash.
Check the temperature sensor.