[Bob In Ct]

Clois:
This is what we know so far - the temp gauge is accurate, the thermostat is in correctly and is opening at 180-190, there is no air in the system. Correct? If so -

A few questions for you -

Does the fan on the radiator turn on? If so, is the air coming out of it cool? If it is you have a circulation problem!

Is the water (coolant) at the bottom of the radiator (the return hose) at ambiant? If it is you have a circulation problem.

Have you tried plugging the heater hoses? I'm convinced if the water pump is moving coolant it's not moving it through the radiator.

Bob