Water doesn't shut off when Filter is removed.

Well it should and here is a link to explain why and how and lets you see that it is indeed the water filter housing failing to do it's job. Page 5 of the PDF file shows the theory of how your water system works proving some parts and repair folks that the main water supply runs direct to the filter housing and has auto shut off in itself, (I suggest opening the back board cover to see your supply as I did to guarantee the lead goes right to the housing) not a valve problem that is allowing water to run when filter is removed. Page 8 explains how to replace filter housing.
https://secured.whirlpoo...ec18554852571ca006c2543/$FILE/R-89.pdf
You can call one of the parts sale online w/your model No. and they can provide you w/the part No. for your refrig. filter housing.
I just ordered one from amazon for $33.40, many parts places want over $50 to $80 for the same part.
Why this question isn't answer on many blogs I don't know.
Best of luck.
Greg

OH, by the way, reason no water to dispenser w/filter out...because it should of course but that housing is suppose to act as a bypass when the filter is out but if malfunctioning we loose that ability to still have water to ice maker and dispencer. I believe it may all stem from a push pin in the back inside of that housing stuck in. I tried oiling it and tapping on it but no success. Best to replace it for $33 bucks.

Didn't see your model No. posted , your part no. is W10121140, Google it and 1 online place has it for $38, Amazon doesn't have it.

1 more thing...Here is a youtube vid on replacing the valve to show you how those water tubings are removed incase you aren't familiar as I wasn't. If the link don't work simply push the collar in at connections and pull tubing out or put into filter housing or the valve.
http://www.youtube.com/watch?v=eNGe_VUDIBA