either in the side of the cylender hear or into the intake manifold, depending on the vehicle
most likely the gauge
Depending on which intake manifold you have there may be a plug in it near the thermostat housing. Also, each head will have a plug on the side. One is usually fitted with the sensor for the original gauge. This is the usual spot for wiring in an aftermarket gauge.
The temperature gauge on a car fluctuates because the car's thermostat is opening and closing. The gauge goes up when the thermostat closes and the gauge goes down when the thermostat opens.
Stuck closed thermostat. Replace the thermostat.
Thermostat is sticking.
With the thermostat.
There could be several things wrong with the system that the thermostat gauge is connected to. You could check to see if the gauge is working correctly. If the gauge works fine, then it could be the housing that the thermostat is mounted to. It could also be a faulty bypass valve near the thermostat which prevents the engine from heating up. Check these places to see what may be wrong with your escort.
the temp gauge will run ot then cool that is when the thermostat is opening again
Is vehicle actually overheating? Could be a bad temperature sending unit or gauge Check temperature with a thermometer If thermostat does not open vehicle will overheat
A thermostat is not a switch it is a temperature gauge. It is powered all the time by the electronics in which it is being used.
The gas gauge and thermostat on a 2002 express van are not related. You have two separate problems with the vehicle.
control fuse blows when you plug thermostat to base controlling a gas pack unit