I have a 2004 XC 90. There is an air pump on the drivers side in front of the air cleaner box. I believe that it assists with cold weather starts. The plastic nipple that is glued to the pump has broken. The only apparent way to fix is to replace the complete pump. Seems silly to replace a working 2...

I have an 04 XC 90 that came stock with 18s. I found some 17s at tirerack.com that works well with my Blizzaks. It fits over the brakes just fine, and the snow tires are a little more affordable than the 18s.