Overheating????????? (Hot & cold Heater)

[rich201283]

Hi
I have a saxo westcoast and it seems to be blowing water out of the radiator cap, I have replaced the cap and checked the thermostat by boiling it in a pan and it opens. I have bled it multiple times but still get the same issue, I have noticed the internal heater keeps going hot and cold, When the temp rises if i take the cap of the rear bleed valve on the heater hose the water is cold.

Any ideas????

[grumpypants]

Sounds as if you may have a partial blockage in the cooling system and especially in the heater matrix. Try draining the coolant and flushing and back flushing the system.