Quote:
Originally Posted by ngoma
Undo the top small hose from top port of the IP thermostatic actuator, keep filling reservoir until coolant (no bubbles) runs from that top port of the TA. This will help avoid trapped air bubbles. Reattach the hose.
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Oh yes, of course. I should have read my Green book! I never detached that hose so there must be a large air bubble in the system. That would explain a) the gauge reaction, and b) the small amount of fluid I drained / added. I bet once I loosen that hose the expansion tank level will drop as air is bled and more fluid is pulled in. Thanks ngoma!