Radiator Freeezing Cold

[Gary406]

just done a 15 mile trip. got home and my radiator fans wont go off
i touched the radiator and it was freezing cold all over
surely thats not right,,,

car doesnt over heat but is still staying around 75-80 on the temp gauge

[Gary406]

i had this in the arctic -10 conditions few months ago but now its 11

seems it is only doing it since i changed my coolant system

i undid the bottom tap on the radiator to empty the system ,,,

[teamster1975]

Are you getting warm air in the cabin?
I'm thinking sticky thermostat or air lock.

[Gary406]

heaters have been a bit poor recently, i put it down to the freezing cold weather but not its 11 degrees they still are not as good as they should be

[Gary406]

would the thermostat be stuck open then if radiator is not getting hot ?

[steve_earwig]

Do the fans go on with the ignition?

[Gary406]

the fans were running after i had got out the car , locked it, went over other side of my street for 5 minutes and when i got back they was still running

[steve_earwig]

Could be they're overcooling the radiator. Stuck relay probably.

[Gary406]

after a 5 mile ride round , the radiator was still cold after the 5 mile ride
i took the coolant tank lid of and started to squeeze the pipe that goes into the thermostat housing...
and when i was pumping the pipe i could feel the radiator going hot all over
i did all this why the engine was still running ,,,radiator is now red hot

when the engine was cold a few hours ago, i firmly squeezed the same pipe and i could hear water as tho it was squeezing past the thermostat
think im gonna change it 2moro and see how it goes
for the price of a thermostat its worth doing