Do you have a diesel engine?
The power steering pump provides pressure to the hydro boost and the steering gear. If the pump fails, you will lose both.
The first thing I would do is to flush the system completely with at least a gallon of fluid to get any debris out of the system. If that does not work, then it may be the pump.
1. Remove the power steering pulley.
2. Raise the vehicle.
3. Remove the oil pan skid plate bolts.
4. Remove the oil pan skid plate from the vehicle, if equipped.
5. Place a drain pan under the vehicle.
6. Remove the power steering pressure hose (2) from the power steering pump from underneath the vehicle.
7. Lower the vehicle.
8. Remove the clamps (3, 5) retaining the power steering return hoses to the power steering pump and remove the hoses.
9. Remove the lower intermediate shaft from the steering gear.
10. Remove the bolt retaining the rear bracket to the engine.
11. Remove the bolts from the front of the pump.
12. Remove the pump from the vehicle.
Images (Click to enlarge)
Tuesday, June 26th, 2018 AT 5:34 AM