Operation - Diesel Engine
WARNING: This page is about a different car, the 2012 Jeep Patriot and 2012 Jeep Compass. However, it is still accessible from the selected car via links, so may be relevant.
Turning of the steering wheel is converted into linear (side-to-side) travel through the meshing of the helical pinion teeth with the rack teeth within the steering gear. The lateral travel pushes and pulls the tie rods to change the direction of the vehicle's front wheels.
Power assist steering is provided by a belt driven combination water and power steering pump. The belt drives the water pump, onto which the power steering pump is mounted. It directs fluid through power steering fluid hoses to the power steering gear where it is used to assist the driver's turning effort.
Manual steering control of the vehicle can be maintained if power steering assist is lost. However, under this condition, steering effort is significantly increased.