How do you remove the power steering pump from a 2001 Chev Blazer with the 4.3 engine?

Maybe a problem in the fuel pump circuit. Check fuel pressure with engine off, and key turned to on, not start. If no pressure, diagnose the pump circuit at the fuel pump relay. One terminal for the relay would be the power feed for the pump. The engine computer signals the relay on for 2 seconds with key on to prime the system, also signals during engine cranking.

check pump new doesnt mean free from defects also check the check valve can be damaged and lastly the fuse may be blown

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

1. Remove serpentine belt

2. loosen power steering pressure and return hoses

3. Remove nut from pressure line mounting on alternator bracket

4. remove power steering pump mounting bolts.

5. Lift pump assembly from engine mounting and remove hoses.

6. Reverse order to install. Fill and bleed system.

NOTE: A new or rebuilt power steering pump will most likely not come with a pulley attached. You will need a power steering pulley remover/installer tool to transfer the pully from the old pump to the new one.

4.3L Engine

1. Position a fluid catch pan under the power steering pump.
   
2. Disconnect the feed and return hoses from the power steering pump, then drain the excess fluid into the catch pan.
   
   NOTE

   On models equipped with a remote fluid reservoir, disconnect and plug the hose(s) in order to prevent system contamination or excessive fluid loss.
   
   

3. Remove the drive belt from the pulley.
   
4. Install a puller tool such as J-25034, or equivalent onto the power steering pump pulley. While holding the pilot bolt, turn the tool nut counterclockwise in order to press the drive pulley from the pump.
   
   NOTE

   When installing the puller tool onto the power steering pump pulley, be sure that the pilot bolt bottoms in the pump shaft by turning the head of the pilot bolt.
   

Installing the pilot bolt

Removing the power steering pump pulley

Installing the power steering pump pulley

1. On most models, it may be necessary to unplug the electrical connection from the A/C compressor, unfasten the compressor mounting bolts and set the compressor to one side without disconnecting the lines.
   
2. If equipped, unfasten the power steering filler tube bolt and remove the filler tube.
   
3. Remove the rear brace retainers and the brace.
   
4. Remove the power steering pump-to-bracket bolts and then remove the pump from the vehicle.
   

To install:

1. Position the pump to the vehicle and secure using the front retaining bolts to 37 ft. lbs. (50 Nm).
   
2. If equipped, install the rear brace and tighten the retainers to 31 ft. lbs. (41 Nm).
   
3. If removed, install the A/C compressor.
   
4. If removed, install the filler tube and its retainer. Tighten the retainer to 15 ft. lbs. (20 Nm).
   

Use a pulley installer such as J-25033 or equivalent to press the drive pulley onto the power steering pump. While holding the pilot bolt, turn the tool nut clockwise in order to press the drive pulley onto the pump. Check that the pulley is flush within 0.010 in. (0.25mm) of the shaft end.

NOTE

When positioning the installer tool onto the power steering pump pulley, be sure that the pilot bolt bottoms in the pump shaft by turning the head of the pilot bolt.


Properly install the drive belt and, if applicable, adjust the tension.

1. NOTE

1. Be sure to secure any hoses which may get in the way or rub other components.

1. Remove the caps, then connect the feed and return hoses to the pump.
   
2. Properly refill and bleed the power steering system.
   
3. Test drive the vehicle.
   

The procedure is as follows:--- 1) Locate the power steering pump on the driver's side of the motor, which is mounted in front of the engine, near the top.2) You will see a fill spout coming out of the pump with a cap on it that says "power steering fluid."
3) Remove the negative battery cable from the battery
4) Remove the cap from the power steering pump,allow the fluid to drain into the pan.
5) Loosen the bolts that hold the power steering pump to the engine block with a socket wrench. Once the pump is loose, remove the belt from the pulley on the power steering pump. Remove the pump from the engine compartment.
6) Insert new power steering pump in reverse. 7) Reattach the power steering hoses and verify they are secure. Fill the new power steering pump with fluid to the full line shown on the dipstick on the back of the cap for your power steering pump. Place the cap back on the power steering pump.

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You probably have air between the master cylinder and the abs pump. Fill the reservior and have someone pump the brake and bleed the primary lines at the abs pump. Good luck.

u will need 2 special tool to remove and reinstall the powersteering pully
it must be removed to acess the bolts to replace the pump and a new pump dose not come with pully

could be a waterpump

Locate the cap to the power steering fluid reservoir
Remove cap and fill reservoir with GM Power Steering Fluid (P/N 89021184) or any fluid a knowledgeable parts department says is compatible. It may not look like much but there are a few dozen steering fluids available out there and lots of systems aren't compatible with many of them (wrong fluid will disintegrate seals, pumps, etc...)