what causes squeaky sound when you turn this steering wheel with all the way?
Fluid may become low because of a leak. You can check under the engine for leaks by looking for red or pink liquid, the typical color of most power steering fluids. Worn Out Belt: Power steering may be affected by a worn belt, causing a squealing noise when the steering wheel is turned. When a belt becomes worn, it can slip, affecting the fluid pressure created by the power steering pump.