At 208,000 kms my temperature gauge suddenly spiked to very hot and I immediately sensed that the water pump had finally let go.There was one crack on the impeller, otherwise it was intact.The impeller did turn freely ,when I grasped and held the outer pulley, this is not right, I would think. The new unit would not allow me to turn the impeller when i grasped the pulley.I changed the thermostat at the same time.
My question is how many start ups and cool downs on average might I expect to do in order to get any air pockets out of the cooling system?
The engine is running hotter than normal (gauge had been between 'N' and 'O'and now is up there at the 'L').
Or is there a better way to bleed the air out of the system?
