Kenmore dishwasher problem

My Kenmore dishwasher has water coming in on the side but there is no water coming out from the spray arm or top sprayer. If this is a pump problem how difficult is it to replace a pump?

we need a model to help you…

It is a Kenmore Elite with stainless steel interior

I have a kenmore model 1374, bought only last August. It worked very well in the beginning but the past few months, it’s not cleaning as well, especially the upper rack. I also noticed the soap dish is not completely emptied at the end of the cycle. What could be causing this? Is it the pump or the spray arm? As a side note, I’m extremely dissapointed with Sears service. If I could take this dishwasher back, I would.

I took the part where the water supply goes into the dish washer and cleaned it out and don’t rember how it goes back together. Can you show me a pitcher of it or a vedo of how it goes back together. Please. The part is blue.