[Jonboy]

A dirty throttle body will also have a really low idle. I would just wet the rag with carb cleaner, and wipe the gunk off.

The tailgate handles have a tendency to crack the arms that go to the tailgate latch rods. Pull the bezel off, and watch the arms. Most likely they aren't moving far enough, and the handle will require replacement.

On the condenser, don't worry about flushing it. Replace the condenser, and pull a vacuum on the system to ensure there are no leaks. Refill and enjoy cold air again!