You probably have a bad head gasket or a cracked head or both.
The thermostat is located in the top hose inlet on the engine. The inlet is on the rear of the engine at the firewall.
The simplest way is by noticing bubbles where the jets go back into the pool area. Air gets trapped underneath water as bubbles, so if you see bubbles, you have a leak in that line from the filter or pump, leading back to the pool. If all your jets are creating bubbles, then there is an air leak in either your pump or filter.
The 2003 Mondeo does not have a IAT Sensor is has a Temperature and Manifold Absolute Pressure Sensor (TMAP) The TMAP sensor fits directly into the inlet manifold and accurately measures the vacuum from the engine. The TMAP sensor consists of a temperature sensor and a pressure transducer and therefore replaces the IAT and the MAP sensors. The TMAP sensor provides the powertrain control module with information relating to inlet manifold vacuum and barometric pressure along with the temperature of the air in the inlet manifold. With the ignition on but without the engine running the sensor reads barometric pressure and when the engine is running, the sensor reads inlet manifold vacuum.
If your diesel engine is running on (presumably you switch it off and it carries on running) Then either the fuel stop solenoid on the pump is not working and you have to "stall" the engine to stop it. Alternatively somehow the engine oil is getting in to the inlet manifold and is being burnt in the engine in place of the fuel. This can sometimes happen when the engine is badly worn or the engine "breather" is malfunctioning. the latter will usually be accompanied by black smoke from the exhaust.
To replace the radiator inlet tube on a 2000 Pontiac Sunfire, first, ensure the engine is cool and disconnect the negative battery terminal. Drain the coolant from the radiator, then remove any components obstructing access to the inlet tube, such as the air intake or hoses. Unscrew the old inlet tube and replace it with the new one, ensuring a tight fit, then reassemble any removed parts and refill the cooling system with coolant. Finally, reconnect the battery and check for leaks by running the engine.
The 97 Ford Explorer thermostat is located inside of the engine inlet. The inlet is where the top radiator hose connects to the engine.
To cool the engine of the car.
metal (steel)
Check the lambda sensor, and clean the idle control valve. Iac is placed in the back side of trothle.
The thermostat is located inside of the water inlet on top or the engine. Remove the top radiator hose, then the inlet to get to it.
internal combustion engine inlet/ compression/ power/ Exhaust
Diesel engines need to be primed when the have ran out of fuel. You should be able to find the primer either ontop of the fuel filter on near the inlet manifold