welcome to Just Answer.
What size engine do you have?
How did the fluid look when you drained it?
Where was the fluid level at before draining it?
yes that is right the screen does have a history of the screen getting clogged. Does the whine still happening? Here is a TSB about the Fluid you need to use in the vehicle. This is just information for you to know about. Let me know if you still have the whinnying noise. Thanks
ok if it is still whinnying your power steering pump could be bad. Here is a test for you. Also is the screen is damaged you need to replace it.
Please let me know if you have more questions
NOTE:This information is designed to be used in conjunction with the diagnostic charts at the beginning of the Steering section. (Refer to 19 - Steering - Diagnosis and Testing)
Replace the power steering pump if excessive noise is present. (Refer to 19 - Steering/Pump - Removal)
The following procedure is to be used to test the operation of the power steering system on this vehicle. This test will provide the flow rate of the power steering pump along with the maximum relief pressure. This test is to be performed to determine if the power steering pump or power steering gear is not functioning properly. The following flow and pressure test is performed using the Power Steering Analyzer Kit, Special Tool 6815 Fig. 1, hoses, Special Tools 6905 and 6959, and fittings from Adapter Kit, Special Tool 6893A.