The process of pressing out the stator of the water pump usually requires the use of special tools. The basic steps are: 1. Prepare tools. A stator extruder is usually required to press the stator out of the water pump housing. In addition, some hand tools are needed, such as wrenches and screwdrivers. 2. First of all, you need to remove the water pump, generally, you need to remove the fixing screws and pipe fittings of the water pump and remove the water pump from the car; 3. Install two platens of the stator extruder at both ends of the stator, and try to install the stator extruder on the water pump shell to fix the platens to ensure safety; 4. Squeeze the stator out of the casing with an extruder, and generally squeeze the stator out of the casing of the water pump with a manual or electric screw press; 5. Once the stator is pressed out, it can be checked and replaced. If the stator winding is damaged or the stator core is cracked, the whole stator needs to be replaced.

This is a basic process, and the specific steps may vary from manufacturer to model. Therefore, before carrying out any maintenance process, please consult relevant manuals or consult professional engineers for guidance.