my 00 4.7 dak dak the powersteering pump go out on it. I replaced it with a brandnew one and all was fine the first day. well today i get in my truck and notice the steering is getting stiff. I check the fluid and sure enough it was low. So i topped the fluid off and i drive to town. Steered fine for about a half mile and then it felt like there was no powersteering pump at all. Pull over and check and sure enough its bone dry. Wtf could have went wrong when it worked fine the first day i had it on?