The engine, dashboard and windshield warm up and a lot of hot air comes out of the heater grid. I've cleaned the radiator, installed the hose and added pressurized water. I've also changed the water and removed the thermostat. But nothing has changed. Might it be the water pump? There is no strange noise and the temperature gauge looks normal. What can I do?
If you removed the thermostat, you should check that the engine cooling fans turn on when the temperature reaches 70/80 degrees. If they do not activate, you need to do the following: turn the air conditioning and check if it works; turn it off and disconnect the temperature sensor. If it does not work, between the two engine cooling fans, and behind a triangular lid, there are three relays, which you need to check. If the relays are alright, then there is a problem in the temperature module.