I have a 97 tj 4 cyl. I dont get anything, heat or air out of the dash vents. Ive looked under the panel where the switch is and i see the door lever is broken off and gone. i can buy this part for like $15. I had it in a shop for an alignment and asked them too look at it and they said "i had a rod broken off in the heat box and it would cost like $400 to fix" I dont think that is the problem but i dont know much about heating and air conditioning. i have read some about this and it seems to be a common problem with tj's but i havent heard anything about parts broken off in the heater box, does anybody have any advice? I can get some pictures if it would help.