You will need a 8mm socket 1/4 drive and some long extensions. I used liquid wrench to clean it out-worked well. Just fill up the 2 bores of the valve with cleaner and let sit. Don't get the electrics wet and I used light compressed air to dry it out a little.

95 Contour GL. Bought new. BAT Sway Bars/Pioneer CD/Koni Rear Struts/Mobil Fluids. Looking for 15" alloy rims-PM me. 180,500km's so far.