1. Preparation:
* Safety First: Use jack stands, *never* rely solely on a jack. Disconnect the negative battery terminal to prevent accidental shorts. Wear safety glasses.
* Gather Tools: You'll need:
* Wheel chocks
* Jack and jack stands
* Lug wrench
* Penetrating lubricant (PB Blaster, Liquid Wrench, etc.)
* Socket set (including a deep socket that fits the wheel hub nut)
* Hammer (maybe a mallet)
* Slide hammer puller (if you choose this method for the bearing race, get one specifically for wheel bearings and designed for the correct size)
* Possibly a bearing separator (depending on how the hub is constructed)
* Torque wrench (for reassembly)
* Replacement wheel bearing (if needed)
2. Removal Process:
* Remove the Wheel: Chock the front wheels, jack up the rear of the vehicle, and securely place it on jack stands. Remove the wheel nuts and the wheel.
* Apply Penetrating Lubricant: Generously apply penetrating lubricant to the area where the hub contacts the knuckle. Let it soak for at least 30 minutes (preferably longer). Focus on the area where the hub bolts to the knuckle. Tap the area around the hub with a hammer to help the lubricant penetrate.
* Remove the Hub Nut: Use the correct socket and breaker bar (or impact wrench if you have one) to remove the large nut securing the wheel hub to the spindle. This nut is usually very tight. The hub may still be stuck even after this step.
* Remove the Hub: This is where things get tricky and depend on your Pacifica's specific hub design.
* If the hub is simply pressed onto the spindle: A slide hammer *might* work, but be careful not to damage the spindle. The puller would attach to the center of the hub, not the lug studs. If using a slide hammer, ensure you are pulling on the correct part to avoid damage.
* If the hub has retaining bolts or clips: You'll need to remove these before you can remove the hub. Consult a repair manual for your specific vehicle to identify and remove these fasteners.
* If the hub is pressed on, and the slide hammer doesn't work: You might need a bearing separator tool. These tools are specifically designed to remove pressed-on components without damage. If you don't have the right tool and are not mechanically inclined, this is the point to take it to a mechanic. Improper removal can easily damage the spindle.
3. Replacing the Wheel Bearing (Likely Needed): If you're removing the hub because of a bad wheel bearing, it's almost always necessary to replace it. This requires specialized tools and knowledge; consult a repair manual or have a professional do it. A new bearing must be pressed onto the spindle.
Important Considerations:
* Repair Manual: Obtain a repair manual specific to your 2005 Chrysler Pacifica AWD. This will provide detailed diagrams and instructions for your vehicle's specific hub assembly.
* Professional Help: If you're not comfortable with this level of car repair, take it to a qualified mechanic. Damaged spindles are expensive to replace.
* Parts: If you need to replace parts, ensure you get the correct ones for your vehicle. Auto parts stores can usually cross-reference parts by your VIN.
This process is complex, and damaging the spindle is a real possibility if not done correctly. If you're unsure about any step, seek professional assistance. Improper removal can lead to significant repair costs.
