I didn't know where else to post this because there's no thread for the quest. I figured I would post in the Maxima forum since that seems to be the closest to the quest far as engine and transmission. I have a 2004 Quest that I just purchased. I got it at 220k so far i have put 3.5k on it and have HAD to replace the bank 2 cat, it only had a 1/4 of the honeycomb left in it, no idea at all where the rest of it went, rather in the engine or down the exhaust. I have also done a drain and fill on the tranny once which seems to have done nothing because there is no change in fluid color. I want to do a flush but have two questions, 1) should I do it? I have heard problems can begin to happen if it is done and 2) where is the tranny filter on this transmission if there is one? I'm really in a rush get that fluid out of there because it is brown on its way to black but I'm not sure wether to drain and fill or flush. If I flush I want to replace the filter also. It will be a backyard flush not a "power flush" like they say is done at service shops, so I'm just pulling the return line and letting it out as I fill it. Advice on this would be greatly appreciated thanks.