The path for the hydraulic fluid to return to the pump from the steering box is through the Ford Power Steering Return Line Hose. This is the low pressure side of this enclosed system so the hydraulic fluid can then again be pressurized and used by the steering box to make maneuvering in traffic as easy as possible.
With the power steering return line hose only containing a small amount of pressurized hydraulic fluid in it, when a breach occurs, the amount of fluid that leaves the system is at a much slower rate than that of the pressurized side on a Ford vehicle. The size of the puddle under the front of the vehicle might be just as big as if the pressurized line hose had a leak, but the loss of power steering when there is a breach in the power steering return line hose will not be felt by the driver as soon. This is because the fluid that is leaking was meant to be returned to the reservoir in the power steering pump and not immediately used by the system.
Locating the breach in the power steering return line hose is more difficult than finding one in the pressurized size because of the lack of hydraulic pressure being exerted on this polymer component on your Ford. If necessary the power steering return line hose might have to be cleaned and a layer of baby powder placed on it so the leak can be pinpointed so the system can be sealed once again on your Ford.
Once the Ford power steering return line hose is replaced and the fluid level filled up in the power steering pump, the vehicle is ready to return to operational status.