Model Number: WM3170CW
Brand: LG
Age: 1-5 years

first noticed i had a problem when the door wouldnt unlock. did some research and found out if the water is to hot it wont open or if its too high. well pulled drain plug and let the water run out the garage and the door unlocks now. now when its time for the washer to drain i have to pull the plug because it wont pump. the pump runs but makes a growling noise. now for the actual question lol the pump assembly pn PD00001722 is looks like its just a motor, they have a pump housing pn PD00001794. now for the actual question. do I have to replace them both? they are cheap motor 40 housing 15 so no biggie just dont want to get whats called the pump and it not be all i need and my machine be completely down since it will be half way torn apart. thank in advance fellas pump motor Click image for larger version. 

Name:	washer pump.jpg 
Views:	0 
Size:	58.7 KB 
ID:	917 pump housing Click image for larger version. 

Name:	washer pump housing.jpg 
Views:	0 
Size:	59.9 KB 
ID:	918