I drove my wife's car the other day and noticed it the 4R70W would not perform a forced 4-2 downshift. I am not trying to do a manual 4-2 downshift, but a 4-2 Forced down shift as in a EEC commanded down shift. What they use to call passing gear in the old days. It will not do a 4-2 downshift when going WOT at 55mph. Any thoughts on this?