Overheat last weekend, I have drained and flushed system out no blockages no oil in water and no water in oil. It seams to be air locked I took it for a run today to heat up, expansion tank filled up and water coming out of expansion tank overflow, water in tank cold, I am thinking thermostat is staying closed. If i take bleed hose off boiling water and air comes out.
Any ideas please
Thanks
Any ideas please
Thanks