To replace the windshield washer pump:
1. Safety First: Disconnect the negative battery terminal to prevent electrical shorts. Always wear safety glasses.
2. Access the Pump: This is the most challenging part. You'll likely need to:
* Raise the vehicle: Use jack stands to safely lift the front of the Caravan. Never work under a vehicle supported only by a jack.
* Remove the splash shield/under tray: This plastic shield protects the underside of your engine bay. Look for screws or clips securing it, usually along the edges. You might need to remove some fasteners.
* Locate the pump: Once the shield is off, you should see the washer fluid reservoir and, nearby, the pump itself. It's usually a cylindrical unit with some hoses attached.
3. Disconnect the hoses: Carefully disconnect the hoses leading to and from the pump. It's a good idea to have a container handy to catch any spilled washer fluid. Note the hose positions to ensure proper reassembly. Some hoses might have clamps that need to be loosened or removed.
4. Disconnect the electrical connector: Unplug the electrical connector from the pump.
5. Remove the pump: The pump may be held in place by a retaining clip, a screw, or just friction. Carefully remove the pump.
6. Install the new pump: Install the new pump, ensuring it's seated correctly. Reconnect the hoses and the electrical connector.
7. Reconnect the hoses: Secure the hoses firmly to prevent leaks. Double check that the clamps are tight.
8. Reinstall the splash shield/under tray: Put the splash shield back in place and reattach the screws or clips.
9. Lower the vehicle: Carefully lower the vehicle using the jack stands.
10. Reconnect the battery: Connect the negative battery terminal.
11. Test the system: Turn on your windshield washer to verify the new pump is working correctly.
Important Considerations:
* Consult a Repair Manual: A repair manual specific to your 2002 Dodge Caravan is highly recommended. It will provide detailed diagrams and instructions, making the process much easier and safer.
* Photography: Before disconnecting anything, take pictures. This helps with reassembly.
* Fluid Type: Use the correct type of windshield washer fluid. Avoid using anything that could damage the pump or hoses.
If you are not comfortable performing this repair yourself, it's best to take your Caravan to a qualified mechanic. This is not a simple job for beginners and improper installation could lead to further damage.