Have you tried to save your layer style and apply it to your new text?
An action reacts on everything you did, including typing text. But a saved style...
What to do?
1/ type any text, and double click on the text layer in the layers Palette.
2/ The Layer styles dialog will open. Create your style.
3/ Press "New Style" (right hand side, between "Cancel" and "Preview"). a small dialog opens. Give your style a name.
4/ Close.
5/ Now type your new text annd do as in 1/. But in the dialog you now take the top option, "Styles". In there you will find your new style bottom right.
Try it out. It works.
Good. Now create, if you want to, and action (use no shortuts!!) of you opening the layer styles dialog and applying your style. I haven't tried this out, but I suppose it'll work. I don't use an action for this: simply double click, open styles and choose the style I fancy is quick enough for me.
Oh, 'nother tip: if you want to do further work on the pixelated layer (>rasterize type), the styles will apply to whatever you feed them. Therefore it is best to place a new empty layer below the text, make everything else invisible and the choose "Merge Visible". The style will be rasterized on the merged layer, and ready for futher mutilation. (hahaa) :B