IMHO, this thread should go away. The topics discussed herein are too specific to be in a thread by only one name, thereby, making it harder to search for a single act. It is almost like only having one thread for the whole HDT site.
Worst bugs we have ever seen are up north. But speaking for Florida, skeeters mainly appear after a long dry spell followed by rain. Not usual conditions in the winter where every front brings a two day downpour.
This does not apply to the Everglades area where they can be truly horrific.
When you have the dryer apart, look inside the lines. Oily residue there is bad news, depending on the volume of oil. Less is better, none is great. Oil residue on the "sneeze" outlet may be simply from road grime.