Are you getting the sweet smell of antifreeze in the interior and or fogs up your windows all the time! Sure its not moisture getting in the fresh air duct? Like Eddie said it can suck. You can have it apart pretty quickly but its getting it back together that is like a twisted up slinky! You take the whole dash cover off which reveals the exoskeleton of the dash. You may get away with leaving the radio, cluster, air bag and main cable attached by taking out all of the attaching bolts of the aluminum frame and tilting it out to get out the box but I have my doubts. Be careful you have airbags that can be set off accidently. There is a procedure for this with minimum unhooking battery and bleeding off the power to the controller. I would personally disassemble the whole thing and take a lot of pictures for routing of cables and the duct work. Unhook heater hoses and bleed, then blow out before disconnecting from fire wall to minimize mess. I don't remember if you can get the steering column out of the way enough for either of the above ways either. Anyway I would talk to a tech or someone who has done this recently and make sure it is the core before taking it on and not a hose or something else. Its been three years since I had mine apart but I am sure it will come back if you need help! Good Luck!