I put new caliper and pads on my 94 f150 4.9 2wd still went to the floor just changed the master cyl pedel still goes to floor

 

Did you bleed it? Did you bench bleed the master cylinder?

 

It can be pretty hard to bleed it if you replaced that many parts at once. You might have to bleed all 4 wheels now.

 

I think I found the problem the parts store gave me a driver side caliper for the pass side so it on upside down lol the bleeder is facing down?

 

bleeder should be on the top.
otherwise you will never get the air out of it

 

I've heard of this happening numerous times as well as someone buying a pair of calipers and putting them on the wrong sides. They pull the old ones off to turn in as cores and then put the new ones on bass-ackwards. No way to get the air out like that.