Burping out the air bubbles can be challenging in a Civic.
Some have the bleeder on the upper hose connector at head. Others have it at the thermostat housing. Mine has none!
My guideline is, with engine warmed up, upper hose will be too hot to grab firmlry and keep holding it. Lower hose will let you hold on to it. Maybe not the case when 100 degrees outside but basic true.
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Coast long and prosper.
Driving '00 Honda Insight, acquired Feb 2016.
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