Join Date: Sep 2009
Location: Socal desert
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Air trapped in the coolent system
I recently replaced the water pump, T/stat and housing and all hoses. Pulled the block plugs and flushed everything out, blew air through the heater and the block to get all of the water out.
Refilled with 6.5 gallons of fluid but I am still about 1-1/2 gallons short, it should take 8.
I know there is air in the system as I can easily squeeze the upper hose and tell that it is empty. I have driven it twice but these things never really get very hot. The degas level does not go down.
I have searched for answers but not really found much.
97 F250HD (Cal. model) Auto, Ext. Cab XLT, 4x4, long bed