Bye Bye Swamp A*s
I took my 03 4R to the dealer yesterday and had the TSB taken care of. They reprogrammed the ECU and changed out the catalytic converter (sp?). In addition, they found an unrelated issue during the test drive and made a minor warranty repair right then and there.
Even though the weather was not great, I drove with my back window down and put it through the ringer. 99% better, I was impressed. Today I did the same thing and same results. At worst, I have a slight ammonia smell when I am going up the huge hill that I live on. I used to gag when I went up that. In general, however, no swamp smell.
Definitely worth the time if your vehicle is covered. I am really happy that I took the time to get this done. Much much better.
Dan