having trouble withthe power steering on my focus at the moment. Having discovered a grating noise while executing turns I suspected that the power steering fluid resevoir may have been empty. It was and so I topped it up with gear box (transmission oil) as it was the only thing available before the drive. The steering has since become extremely stiff. Is it just a case of emptying the resevoir? How would I bleed the steering system of the fluid? And can u recommend a replacement fluid?
Focus, 90k miles, manual transmission.