1991 Crown Vic Heat Problem.
 

Hi,

My Crown Vic has very little heat when it is in the 40's to 50 degrees out. But when it dips below that there is no heat at all. I dont know what could be causing this problem. I thought that it might be the heater core, But i was told that it was replaced 3 years ago. I didn't think that a heater core could go bad that fast. If anyone has any idea what the problem is i would like to know.

Thanks, Chris

RE: 1991 Crown Vic Heat Problem.
 

thermostat mabey flush cooling system??