[Vendome]

Pull the screen off the inlet and clean it.

If that doesn’t fix it try running a coat hanger around and see what comes out.

13 years, you might have calcium and lime build up.

[Frantzie]

Here is what the valve looks like:

http://www.appliancepartspros.com/Appliance-Parts/WHIRLPOOL-Washer-water-inlet-valve—universal-item-number-AP3098982.aspx

http://www.appliancepartspros.com/part_details.aspx?part_id=3094541&image=1

$10 to 20 part. I will see if I can clean it. Cleaning the screens now.