afpj
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There seems to be lots of advice regarding cooling system bleeding on our engines. It's actually not that difficult to understand looking at the hoses under the hood. With our style cooling system the surge tank does all the work. The surge tank is a sealed system with an extra air space hose connected to the radiator that provides a path for escaping air. Essentially there is no special procedure to bleed the cooling system. Just drive the vehicle like normal.
From service manual:
That is from a post by matahoe in another thread with the exact same title. It appears that the upper hose routing which is just the airspace hose, if routed incorrectly and dips below a certain level it could pull in coolant. We actually might have a winner here.