Tools you'll likely need:
* Socket wrench and sockets: The size will depend on the pulley bolt. You'll likely need a large enough socket to fit the bolt comfortably and a wrench that can provide sufficient torque.
* Wrench (possibly two): To hold the water pump itself while you loosen the pulley bolt. You might need a special wrench designed for this purpose, a strap wrench, or a second person to help. A holding tool prevents the water pump from turning.
* Pulley puller: This specialized tool is almost essential. It grips the pulley and allows you to safely pull it off the shaft without damaging the water pump. There are several types of pulley pullers.
* Penetrating oil (like PB Blaster): Spray this generously on the pulley bolt several hours before attempting to remove it to help break loose any rust or corrosion.
* Jack and jack stands (or ramps): To safely lift the vehicle and provide access to the water pump.
* Safety glasses and gloves: Always wear appropriate safety gear.
General Procedure (Always refer to your repair manual for specifics):
1. Safety First: Disconnect the negative battery terminal. Secure the vehicle using jack stands.
2. Access: Locate the water pump and pulley. You'll likely need to remove some components (belts, etc.) to gain access, consult your repair manual for the correct procedure.
3. Penetrating Oil: Liberally apply penetrating oil to the pulley bolt. Let it sit for several hours, or even overnight.
4. Hold the Water Pump: Use a wrench (or a helper) to firmly hold the water pump shaft, preventing it from turning while you loosen the pulley bolt.
5. Remove the Pulley Bolt: Use the appropriate socket and wrench to carefully remove the pulley bolt. It will likely be very tight. If you have an impact wrench, that can be helpful, but use caution to not damage the bolt or water pump.
6. Use the Pulley Puller: Attach the pulley puller according to its instructions. Carefully and slowly pull the pulley off the shaft. Some force may be required, but avoid using excessive force, which could damage the water pump.
7. Clean up: Clean any remaining debris or penetrating oil.
8. Reassembly (if applicable): Reassembly is the reverse of the removal process. Be sure to torque the pulley bolt to the manufacturer's specified torque value found in your repair manual.
Important Considerations:
* Frozen Bolts: If the bolt is extremely stubborn, consider using heat (carefully!) to help break it free. However, be mindful of nearby components that could be damaged by excessive heat.
* Damaged Parts: If any parts are damaged during removal (pulley, water pump, etc.), they will need to be replaced.
* Repair Manual: This is crucial. Following the instructions in your vehicle's specific repair manual is vital to avoid damage and ensure correct reassembly.
This is a general guide; consult your repair manual for the specific procedures for your Dodge Durango's year, make, and engine. If you're uncomfortable performing this repair yourself, it's best to take your vehicle to a qualified mechanic.
