Did you turn the heat on 'high' and run the fan at least on high enough to fully open the heater core valves? Doing so may increase the reduction of the concentration, and help keep the air bubbles to a lower amount (the water pump actually pushes air through some when it is running. How does the heater work now? Anyway, whenever I flush/fill systems I turn the heat to high/high and let the W/P help me replace more coolant during flush/fill.


Ooops, NM, I see step 2 I misread that one! Sowery!