The small diameter of the Lincoln Power Steering Pressure Line Hose transports the hydraulic fluid across the front end of your vehicle. This is how the hydraulic fluid is transferred from the power steering pump to the steering box on your Lincoln so maneuvering the vehicle is easier for the driver.
The reason the power steering pressure line hose is small in diameter is so the pressure does not significantly diminish in this conduit while it is being transported. It is this pressure in this conduit that causes the problem when there is a breach in it. Because of the high pressure, the hydraulic fluid will emanate from the rupture similar to what a fountain looks like. This rapid lose of hydraulic fluid from the system through the hole in the power steering pressure line hose will be immediately felt by the driver of the Lincoln.
The symptoms of this rupture in the Lincoln power steering pressure line hose is the felt in the steering wheel by the driver of the Lincoln. The wheel will be harder to turn and could jerk when the driver attempts to maneuver the vehicle on the road. If this condition is felt then an inspection of the power steering pressure line hose should occur immediately.
The best way to inspect the power steering pressure line hose is to be observing it when there is pressure in the system. The reservoir in the power steering pump should be filled and the engine running. With one person turning the steering wheel, another should be looking under the hood so they can see a fountain of fluid leaving the point of the breach in the system. This will make it possible to positively identify the problem so it can be repaired.