6.0 Swap w/new Enytropy Radiator/Fans running hot when not moving.

[Nodnarb76]

Originally Posted by 1moretoy

Just replaced my water pump and installed a new 160* thermostat from summit. Engine was doing the same thing you are describing at idle though. Fans working and water everywhere, no air in the system. Ended up the thermostat was stuck closed replaced with a factory one from parts store and works perfect now.

That is what I ended up doing too. Swapped for a new thermostat and I have no more problems either.