Changeing a power steering pump - 1999 Oldsmobile Alero

Didn't I answer this yesterday?
Question edited for clarity. Please always include model. Some models have known issues!

Sometimes after a power steering pump is installed, reduced pressure inside the hydraulic lines will build, which can create the symptoms you're experiencing. In other cases, low power steering fluid levels can cause this to occur, as can air bubbles trapped in the hydraulic lines.
Jan 3, 2018

Hard to turn steering wheel after power steering pump replaced

Videos as well

https://www.google.com/search?q=hard+steering+after+changing+steering+pump

..

have you inspected the steering rack and pinion. they do wear out and need to be replaced.

2003 6.0 f350 Power steering pump - YouTube

The screaming is caused by the pressure relief valve located inside the pump body opening.

This means that power steering fluid that should be circulating through the power steering servo is partially blocked.

This could be a safety problem in the making. I strongly suggest you take it to a trustworthy shop for a checkout.

Is it full of power steering fluid ? How are the hose's high pressure and low pressure ? Did you bleed the air out after changing the pump ? There is no filter .
Verify power steering fluid level per operating specification. Refer to Checking and Adding Power Steering Fluid.
Start the engine. Rotate steering wheel from left to right. Check for sign of cavitation or fluid aeration (pump noise/whining).
Verify the fluid level. Repeat the bleed procedure, if necessary.

1. Remove the Power Steering belt.
2. Disconnect the power steering hoses from the power steering pump. Take caution as there may be some pressure.
3. Remove the bolts holding the Power Steering pump to the pump mount.
4. Install the new Power Steering pump.
5. Reconnect the power steering hoses.
6. Reconnect the Power Steering belt.
7. Top off with fluid.
8. Start up the vehicle.
9. Turn the wheel to the left.
10. Top off with fluid.
11. Turn the wheel all the way to the right.
12. Top off with fluid.
13. Repeat the last 4 steps until the fluid level doesn't change much, and is topped off.

I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

2004 Pontiac Grand Prix V6-3.8L VIN 2

Power Steering Pump: Service and Repair
Power Steering Pump Replacement
NOTE: The content of this article / image reflects the changes called out by TSB: 05-02-32-004.

Power Steering Pump Replacement
Removal Procedure
1. Remove the accessory drive belt.
2. Raise and support the vehicle. Refer to Vehicle Lifting.
3. Remove the tire and wheel assembly.
4. Disconnect the power steering pressure hose from the power steering pump.
5. Disconnect the power steering return hose from the power steering pump.
6. Disconnect the harness connector (4) from the power steering pump (1).
7. Remove the power steering mounting bolts from the power steering pump.
8. Remove the power steering pump from the engine.
9. Remove the power steering pump pulley from the power steering pump.
10. Remove the power steering pump reservoir from the power steering pump.
Installation Procedure
1. Install the power steering pump reservoir to the power steering pump.
2. Install the power steering pump pulley to the power steering pump.
3. Position the power steering pump to the engine.
Notice: Refer to Fastener Notice in Service Precautions.
4. Install the power steering pump mounting bolts.
Tighten the bolts to 25 Nm (18 ft. lbs.).
5. Connect the power steering pressure hose to the power steering pump.
6. Connect the power steering return hose to the power steering pump.
7. Install the harness connector (1) to the power steering pump (4).
8. Install the accessory drive belt.
9. Fill the power steering system with fluid.
10. Bleed the power steering system.
11. Operate the power steering system and inspect for power steering system leaks.

Power steering pump special tools


Power Steering Pump Removal & Installation Power Steering Pump (2V) To Remove:

1. Before servicing the vehicle refer to the precautions at the beginning of this section.
2. Disconnect the battery ground cable.
3. Remove the accessory drive belt.
4. Remove the alternator.
5. Drain and remove the radiator coolant recovery reservoir.
6. Position a drain pan under the power steering pump underneath the vehicle. Disconnect the hydraulic pressure and return lines and allow to drain.
7. Remove the idler pulley from the power steering pump support.
8. Remove the belt tensioner.
9. Remove the bracket mounting bolt located under the belt tensioner mounting.
10. Remove two retaining nuts from the bracket mounting studs. Remove both mounting studs, and pull off the power steering pump support with the pump attached.
11. Clamp the pump support bracket in a suitable vise.
12. Remove the power steering pump pulley from the pump shaft using Pump Pulley Remover T69L-10300-B, or equivalent. Remove the three bolts retaining the power steering pump to the power steering pump support and remove the power steering pump.

To Install:
NOTE: The pulley must be installed within 0.010 in (0.25 mm) flush with the power steering pump shaft.

1. Install the power steering pump to the power steering pump support. Tighten the mounting bolts to 18 ft-lb. (25 Nm).
2. Install the power steering pump pulley using Steering Pump Pulley Replacer T65P-3A733-C, or equivalent; the pulley face must be flush within 0.010 inch (0.25mm) of the pump shaft.
3. Install the power steering pump/pump support and torque nuts/bolt to 24 ft. lbs. (33 Nm).
4. Install the bracket mounting bolt located under the belt tensioner mounting.
5. Install the belt tensioner.
6. Install the idler pulley to the power steering pump support.
7. Connect the hydraulic pressure and return lines.
8. Install the radiator coolant recovery reservoir.
9. Install the alternator.
10. Install the accessory drive belt.
11. Fill the power steering reservoir with power steering fluid.
12. Connect the battery ground cable.
13. Run the engine and check for leaks and proper operation. Bleed the power steering system if needed.

How to change out a power steering pump on windstar 2000