Tools You'll Likely Need:
* Pulley puller: This is essential. A standard three-jaw puller is usually sufficient. Make sure it's the right size for the pulley diameter.
* Socket wrench and sockets: To remove the power steering pump mounting bolts (if necessary).
* Wrench: To hold the pump shaft stationary while removing the pulley nut.
* Penetrating oil (PB Blaster, etc.): To loosen any rusted or seized fasteners.
* Clean rags: To keep things tidy and avoid contamination.
* Safety glasses: Protect your eyes from flying debris.
* Gloves: Protect your hands.
Procedure:
1. Disconnect the Battery: This is a crucial safety step to prevent accidental shorts.
2. Access the Power Steering Pump: You'll likely need to remove the serpentine belt first. Consult your repair manual for the proper belt routing. Sometimes, you might need to loosen or remove other components for better access, such as hoses or brackets.
3. Remove the Pulley Nut (if present): Some pulleys have a nut in the center. If so, use a wrench to hold the power steering pump shaft stationary while you loosen and remove this nut. Penetrating oil may be necessary.
4. Position the Pulley Puller: Carefully align the puller's jaws with the pulley's outer edge. Ensure that the puller is firmly seated and centered before proceeding.
5. Tighten the Puller Screw: Slowly and steadily tighten the puller's center screw. This will pull the pulley away from the pump shaft. It might require some force; avoid applying excessive force that could damage the pump. If it's extremely stuck, you may need to apply heat carefully (with a heat gun, not a torch!) to expand the pulley slightly.
6. Remove the Pulley: Once the pulley is loose, carefully remove it from the shaft.
7. Inspect the Shaft: Check the power steering pump shaft for any damage.
8. Reassembly (in reverse order): Once you've completed the repair or replacement, reassemble everything in the reverse order, making sure to tighten all bolts and nuts to the correct torque specifications (again, consult your repair manual).
Important Considerations:
* Seized Pulley: If the pulley is completely seized, you may need more specialized tools or professional help. Trying to force it off with improper tools could damage the pump shaft.
* Pump Removal: In some cases, it might be easier to remove the entire power steering pump to access the pulley. This will require additional steps for disconnecting hoses and mounting bolts.
* Repair Manual: This is your best resource. The steps outlined above are general guidelines. Your specific Jeep Cherokee model may have variations.
If you're uncomfortable performing this repair yourself, it's always best to consult a qualified mechanic. Improperly removing the pulley can damage the power steering pump, leading to expensive repairs.
