Intermittent problem with 2006 lr3 hse. Mostly occurs coming off a stop after driving for awhile. Take foot off brake and instead of normal creep forward of engaged transmission, its like in neutral. Step on gas and hear whirring/whirling engine racing sound then transmission engages without clunk. If I go to sport mode at stop, all is well for the most part. Is this low or fouled fluid in transmission or a torque converter issue? Or some other electronic/computer issue? About 130k miles on it. Other thought was that the linkage on drive (D - not sport mode) was touchy and slipping up to neutral, without noticable movement. I sometimes drive with my hand on the shifter, which could introduce a bit of play I suppose. I have noticed that pushing shifter deeper into D can engage when I hear the racing sound. Assuming low fluid, I found the drain plug at back of plastic pan after removing heat shield. Could not remove metal frame that heat shield bolted to because one of the small bolts backed into the linkage cable.. Now looking for transmission fill plug. I found an 8mm hex head plug on the back face of transmission, about midway up the casting on the driver side, but on driver side (US) half of the back face. I found a writeup saying fill plug was on the right side.. Right and left side depend on my orientation laying on my back staring into cramped and dark spaces. So I'm a little worried I found the correct plug. Any picture references or clarifications on where the plug is located? I found a picture of transmission with an arrow that I believe points to the location of the fill plug (see attached file). Plug I found was not the same one. Must have been a transfer case or differential plug. Now to see how to loosen that bad boy. Yikes, to get to drain plug enough to remove, that heat shield support bolt next to linkage had to be removed in order to lower the support. That ended up being a hacksaw job. Lots of other anchor points so not worried about it. Then needed breaker bar to loose the fill plug. Reseated it and did a short drive to get up to temp, went thru the gears etc. Then leaving it running at idle I backed out the fill plug, got a burn from catalytic converter as LOTS of fluid came out, not the empty hole I expected, not a dribble, but lots. Shut off LR and did damage control on driveway. Now will put plug back in and try shifting it. Maybe there was too much fluid in the transmission? It was deep brown in color. I'll likely drain it all and replace at this point.