I have a 90 Turbo II and the radiator tank start to get full and the car message add antifreez come out,I replace radiator cap and thermostat and still the same.somebody now what happen please let me now.

 

if the radiators full then water level sensor that is on the top of the radiator is probly faulty

 

you probably have a air bubble trapped in the cooling system... do yourself a favor... when cold, remover the radiator fill cap... run car up to operating temprature. once the thermostat is open hold the RPM's around 2000 for a few seconds... then let idle... repeat a few times... fill radiator as needed. car should be on level ground or pointed uphill. replace raditor cap





also check to make sure that your over flow hose and bottle are both intact with no cracks etc...