1995 Grand Cerokee Power Steering Pump

sound like lack of lubrication at the steering joints, your ball joints need greasing and make sure you bleed power steering system, check power steering fluid level.if low more like power steering system full of air need bleeding.

Hi Riley:
Nice car, I have the same '93 5.2L V8, according with the Jeep Repair Manual for 1993 at 1998, check this procedure to RESERVOIR REPLACEMENT - REMOVAL
(1) Remove power steering pump. Refer to Pump Replacement in this section.
(2) Clean exterior of pump with solvent.
(3) Clamp the pump body in a soft jaw vice.
(4) Pry up tab and slide the retaining clip off (Fig. 7).
(5) Remove fluid reservoir from pump body. Remove and discard O-ring seal (Fig. 8).







INSTALLATION
(1) Lubricate new O-ring Seal with Mopar Power Steering Fluid or equivalent.
(2) Install O-ring seal in housing.
(3) Install reservoir onto housing.
(4) Slide and tap in reservoir retainer clips until tab locks to housing.
(5) Install power steering pump. Refer to Pump Replacement in this section.

If you need other additional details or some specific section from the Repair Manual, feel free to contact us in the previous links.

Hope this helps; also keep in mind that your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using Fixya, and have a nice day.

Did you check all the fluids? Power steering can whine when fluid levels get low. I would think of things that are driven by the engine: power steering pump (check the power steering fluid), AC compressor, water pump, and so on.

Check out the belt tensioner; make sure it's not too tight, and that the pulley is properly lubricated. If that doesn't fix it, ask your mechanic about timing belt issues (fairly soon).

Hope helps.

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.




*This originally came from abauto

Maybe your power steering pump went. if the belt is not wet, but still tries to slip on the power steering pump pulley, the pump is probably starting to seize up. Did you check your power steering fluid? Try to remove the belt from the power steering pump pulley, then turn the pulley by hand to see if the pump is seized

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.

It very well could be the pawer steering pump. But to isolate the squeking sound, take that can of wd-40 and find the idler pully and tensior pully. Spray the bearing area of both pulleys. If your bearing in those pulleys are going bad then it will make that noise. If the wd-40 quits the noise at one of those tow pulleys then you know which one to replace. If its does not, then start looking to replace the powersteering pump. I take it you have checked the power steering fluid levels and they are ok?? Also, you stated that the noise started after you bought the alternator, then try a new alternator. It might of just been a faulty alternator. Happens all the time. One last inexpensive tip is replacing all belts with new. Belts get glazed over and dirty and cause noise too. One last question. Did you make sure the belts were tight enough? Just a little variance in the belt tension can make the difference.

your power steering pump is probably starting to go out, its best to have it changed before anything like that happens

Check with the junkyard where you got the pump...you may need to change the pump bracket with the pump, or use a different pump.
You don't have a separate tensioner the pump is on a slide mount and is the tensioner (why the parts guy is a parts guy not a tech).

First check the distance from the bracket mount points on the block, to the pump mount points on both brackets. If distance is different then the brackets are different. If they are the same, you may need to either change pump itself to one that matches engine year. However, if there is sufficient room on the pump shaft, any shop that rebuilds pumps can re-position the pulley to your specs, or replace the pulley with one that has a different offset.