My truck blew a upper radiator hose. I replaced the hose and it ran below operating temp and didnt put out any real heat...luke warm air..but its negitive 15 out...i want heat. So...first thought was thermostat...tested it in a boiling pot of water...opened as it should. Put it in and now the truck overheats and only blows cold air...i purged the system for a good 20 minutes with radiator cap off...but now when i try to purge after about 20 min of ideling and getting up to normal operating temp the coolant comes puking out the filler neck...any help?
My car has an automatic transmission.
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