So I take it, it's not that simple in my stupid 4.7? Ugh. What is the fix for me? I hate the stealership and it's something I could realistically just deal with but it is annoying.
The very first thing to do is check and verify the correct fluid level when hot. Also, check color and smell. Being dark brown/black is not so bad, but if it smells burnt, that is not a good thing. After this I think the next thing I'd do is change the fluid/filters in the transmission. Some of the 05's with the 545RFE had a TSB relating to the cooler return filter. There have also been numerous occurrences of the sides of the main filter splitting. With either/both of these issues you'll possibly get all sorts of strange symptoms. Once this is done and the fluid level is spot on when hot, see if the problem is still there.
Beyond that, I'd check all the electrical plugs for security and cleanliness. Do this at both ends....transmission and TCM. If you have to go any further, it may end up being a solenoid pack. This will require dropping the tranny pan again, removing the valve body, replacing the pack and then reassembly.
06 GCO, Dk Khaki, QDII, Flshing Hi 3rd Bk Lt, MDS "ON" Lt, Airtab Vortex Gens, Debadged, Fumoto Drain Valve, BT Catch Can, Chopped EGR Tube, SRT8 CAI, K&N Filter, Sonnax Trans Line Press Booster, SC Tuner W/Adv Trans Tune App, DS Tuner, Cust tubular hdrs w/3 in Magnaflow/Xlerator AP Exh Sys, Bilsteins, SRT Springs/Sways, Cust Eng Cvr, SRT8 frt/rear bumpers, FRI Sidewinder Cam/6.1 valvetrain, SLP 25% UD Pulley, BBK true 90mm T-Body, SOS Ign Coils w/.060 spark plug gaps, SRT Reps with 265/45&295/40X20's.