There's a coolant temperature sensor located on the lower part of the water pump on the drivers side.
It has 1 coolant sensor, 1 temperature sensor
That is the coolant sensor. Not the one for the temperature gauge in the dash.
behind the thermostat housing,two wires
One the engine block on the 302 and 351's
The coolant temperature sensor screws into the bottom of the radiator, and has two wires connected to it which have a quick relese plug....piece of cake
There are two separate sensors that play here. the "coolant temperature sensor" and "coolant LEVEL sensor". I suggest confirming which of these was replaced, as it is very common for them to be confused. likely you will find the coolant sensor that was replaced was the one on the engine (temperature); The LEVEL sensor is mounted either in the coolant resivoir or in the radiator. Probably just need the proper sensor replaced.
It is screewed into the intake manifold right beside the thermostat housing.
What size engine? on my 1993 2.5 it is direcly behind the coil on the front of the engine.
It is on the firewall side of the motor and can be accessed on the passenger side of the car. I believe it is on the thermostat housing. There is a coolant line that connects to a fitting right next to the sensor in the housing.
Coolant 'sensor' for EEC purposes is near front coil on heater core hose going to thermostat housing. It's a two wire connector.
"Inside the overflow tank. you get to buy a whole new tank." The switch inside the overflow tank is the coolant level switch. The engine coolant temperature sensor is located on the driver side of the engine near the rear of the engine compartment. by theramonast