You normally don't have to do anything special except turn fully left and right a few times. Once in a while it can help to do that when parked with the left or right side of the car up higher such as when on a curb.
Look for signs of foaming in the reservoir too. Red power steering fluid will look pink. Clear fluid will look white or cloudy. If the fluid is foamy, the tiny air bubbles are circulating WITH the fluid rather than floating out. Even though those bubbles are small, there's a lot of them and they compress just like a big air pocket. The only cure for that is time. Each time you stop the engine, some of those bubbles will float up in the reservoir and out, but the ones in the rack and hoses will have to circulate their way up to the reservoir the next time the engine is stopped.
Wednesday, April 20th, 2011 AT 11:51 PM