Coolant pressure

[grahamap]

Ive noticed there is no obv pressure when I remove my radiator cap even after engine has warmed. Thermostat is brand new and water pump is not weeping which is usually a tell that its on the way out. Anything I could have missed? No leaks or bubbles in system either.

[the evil twin]

Ive noticed there is no obv pressure when I remove my radiator cap even after engine has warmed. Thermostat is brand new and water pump is not weeping which is usually a tell that its on the way out. Anything I could have missed? No leaks or bubbles in system either.

I't the Radiator Cap that regulates the pressure.
Change that if you are not sure it is working.

[Parksy]

Give the radiator hose on the top a squeeze when cold, then same again when hot. This well give you a good idea if there is pressure in the system. Careful when removing the cap when hot. Not good practice.