Mine went out as well. The diafram in the check valve had sprung a leak, causing the fluid to drizzle out of the valve itself.

I had to remove the passenger side wiper arm, and pull the hose to it through the back to get reasonable access. I pulled the hose off the clip located on the plastic peice IN FRONT of the radiator. This should allow you to pull it in front of the radiator, and get a good look at it (and replace it). I took my old one, split it in half and closed it on a wall from a ziplock bag. I get mucho cool dry wipes. You mught just wanna replace yours.

If you own a Haynes manual, installation is the reverse of removal. I also think this is one of the tasks that don't require special tools or knowledge, and that they don't refer to the dealer.
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