Hey all, Im new to this so bear with me please!! Ive had my 2001 TJ for 7 Years now, and the heat just recently went out with no warning. When I turn the knob from 1 to 4 the fan doesnt work, but when Im driving at highway speeds I get some heat in the cab, Im assuming its heat from the engine tho. Any bit would help, I dont know where to start with this though. Thanks in advance!!