I posted a similar question on another forum as well. My 04 Supercrew Lariat AC smells like dirt or moldy smell. I already used a whole can of Lysol spraying through outside intake in fresh air mode for half and the other half spraying in the blower intake under dash for recirculate. It helped but still slight smell. I have read it's likely the evaporator that has Bacteria or mold on it. The drain is not clogged and condensation drips out freely. Has anyone tried the products made for this where you drill small hole in evaporator housing and spray the foamy product in through a tube? Then afterwards seal the hole with a plug. It's supposed to kill the mold and bacteria and then as foam breaks down it gets washed out drain as condensation flows out drain. If you have done this where is ideal spot to in the evaporator housing to make the small hole to insert the tube and foam? Any pictures? Thanks