I dont think its the fuse because during the last couple of days, the heater has all of a sudden starting working while driving. If I shut the engine down once I arrive wherever I am going...and then start it back up....the blower isnt working again. Guess I need to replace the blower. how difficult is it to do on my own? Oh...when the blower was working....it was making a funky sound...like something was caught in the vent....like a card flapping.

Also....I noticed that even when the blower is working....the heater only heats the car while driving on the highway......in other words...I would not be able to heat the car up in the morning before getting in for it would not blow out hot air while idling. What would cause this?