where is the temp switch mazda 3 2004 2.3 engine
Because they are not interchangeable.
i change the thermostat and the temp switch but still not working
Hold the temp button down until the degree sign flashes then push the temp. button again to switch from Fahrenheit to Celsius.
The switch is set to a temp, and will close when the temp is reached.
Temp sensor is next to the thermostat housing. Relay is in the fuse box. Computer is in control. There is no temp switch.
There is a temp blend door controlled by the temp control switch. The temp blend door is run by an actuator. If this actuator needs replacement it requires removal of the dash assembly (big job).
When you stand at the frount of othe car, bonet up. The temp switch is under the Inlet manifold (left side) at the front of the engine.
the coolant temp is below the regulated temperature.. replace the thermostat and temp sender switch
A restricted/plugged heater core can do that. Try flushing the heater core.
The problem is possibly your crank seals. When the motor is cold it runs ok but as it comes to normal temp it craps out , more than likely its your crank seals, perhaps base gasket.
It's an on/off switch that's temp controlled