This isn't a question, but more of letting anyone who has one know...
our 2006 Pacifica had a horrible sticking gas pedal, I pulled off the throttle body and found it to be CAKED with soot... to the point of causing the throttle blade to stick. So half a can of carb cleaner later the throttle response is better, the car idles smoother, and no sticky gas pedal.
I spoke with another Pacifica owner and he said that his car has the same issue, so I have a feeling it's a fairly common issue.
so anyone with a Pacifica, it would probably be a good idea to pull off your throttle body and clean it every so often.