HONDA ACOORD HYDRAULIC DIRECTION 2003 V6 VTEC

There are already three hydraulic directions of my action that I change the first towards a lot of noise, and the second is very hard but does not make noise and the third one makes noise and is hard, my question is the one that is hard is because it may have air and how they are purged and if they can be purged rather; I beg for help

If the hydraulic directions can be purged, as it depends on the system they bring, but there a way as universal to do it, lift the vehicle and leave the two front wheels in the air and give it a game with the engine walking the hydraulic fluid, do not cover the deposit and toured the steering wheel of the top to the top several veins until the direction does not make noise, but the direction does not Peugeot's that also work with a small electric part that has a reliable and fuse is not something that this is the problem.