96 Heat Issue's
 

My 96 collectors edition heating system doesn't seem to work properly. I know last winter it would drive you out, you had to lower the temp on the digital display. Now it just doesn't seem to get warm after the engine temp comes up to normal. Any ideas on what to check ? I don't drive it much in the winter, just pretty days, but when it's cold, I do like interior heat. Thanks in advance..