Here's why:
* Accessibility: The water pump is located in a somewhat tight space within the engine compartment, potentially requiring the removal of other components for better access. This could include things like the serpentine belt, fan, and possibly even the radiator.
* Multiple Components: The job often involves more than just swapping the pump itself. You'll likely need to drain the coolant, disconnect hoses, possibly remove the timing cover (depending on the engine), and then reinstall everything correctly. Improper reassembly can lead to leaks or other problems.
* Potential for Leaks: Improper sealing of the water pump gasket can lead to coolant leaks, requiring further work.
* Torque Specifications: Using the correct torque specifications for the bolts is crucial to prevent damage to the engine or the water pump itself.
Factors affecting difficulty:
* Engine type: The Durango came with different engines (e.g., 3.9L, 4.7L, 5.2L, 5.9L). Access and specific procedures will vary slightly depending on the engine.
* Your experience level: If you've never worked on a car before, this is a challenging job to start with. If you have some experience with engine repairs, it will be more manageable.
* Availability of tools: Having the correct tools (sockets, wrenches, torque wrench, coolant drain pan, etc.) significantly reduces the difficulty and time required.
In summary: While doable for a reasonably competent DIYer, it's not a simple task. If you're unsure, it's always best to have a qualified mechanic perform the repair. Consider researching a repair manual specific to your Durango's year and engine to fully understand the process before attempting it. You'll find videos online demonstrating the process, but be aware that these might not perfectly match your exact vehicle.
