recently my heater hose broke off the car the 1 that has a4 way conection ,,, ihad the hose replace and the anti/frezze refill,,,, never try the heat until,, 2 weeks ago and found out that i have no heat the thermosat was replaced about 3 months and it was fine ,,every thing esle seem,s to be working fine the BLOWER /THE FAN/THE VENTS OPEN/CLOSE/BUT NO,,HOTAIR,,COMES OUT THE VENTS CAN ANY ONE GIVE ABIT OF ADVICE ON THIS STANG MATTER,,,IT GET ABIT CHILLY HERE .....NEED ALITTLE HEAT,,, THANK,S M DWYER 1994 S/420