94 Grand Jeep Cherokee

I just got a new fuel pump put in, and its working fine, but the day after I got it back, its been making weird noises when turning left or right. Its getting harder to make turns, the steering wheel isnt turning as easily, and it makes a bad cranking/grinding noise. Im pretty sure the front shoulders (i think thats what they are called) were replaced recently. The noise presents itself even if not moving, just turning the steering wheel when parked. Is it just that the power steering fluid is out? Or is there a bigger problem?