Whirlpool washer will not drain

I have a whirlpool washer that will not drain. I thought I solve the problem a couple of days ago when I found a pinched drain line. I fix the pinch. Its been running fine for the last 2 days. Now it happened again,will not drain. Hoses are fine. Is ther a pump that I have to replace? Please advise Ty

Yes, there is a pump and most likely it has gone bad. You have to lean back the washer to access the pump from the bottom.

Here are the breakdown diagrams and http://www.appliancepartspros.com/partsearch/model.aspx?diagram_id=14806&&model_id=237853

Gene.