Re: Airconditioner Help?
cabin air filter is where I'd start. Also you want to make sure you're cycling to open air (not recirc) every now and then to cycle in fresh dry air. Recirc has a habit of collecting moisture on the coils that turns into mold/slime and makes the smell. If the mold isn't too bad running it on open air for a few days will dry it out . If its still there then you have 2 options.
A. Clean the coil physically, which is an all day project and you must be fair tech savy. Mopar does sell a kit specifically for cleaning the coil(or you can use good ole bleach) and a preventative coating to keep it from ever molding again, but its pricey.
B. Use Galaxie's suggestion, but use a VERY diluted bleach mixture in a spray bottle instead of febreeze. WARNING I highly suggest you cover your seats and any other cloth interior if you do this. The spray bottle will turn it into a heavy vapor that 99% of the time will cling to the a/c parts, but with bleach its always best to take extra precautions. When I did it I ended up just taping cut up pieces of a t-shirt over all the vents, which worked perfect. Needs to be a thin shirt so that air still flows through it, ie no sweatshirts. Another note you'll want to remove the cabin filter before doing this, otherwise it will soak up all the bleach.
My personal suggestion is to try them in the order I presented them as I've had the best luck and only had to goto C. once in the 10 or so times I've had a stinky a/c.
XJs: 12(All 4.0 4x4s)
CJs: 2(305 & FI 4.0 swaps)
TJs: 1(Rubi - currently in garage)
WKs:1(05 Hemi - currently in driveway)
Point of the story is once you start you can never quit owning the damn things...