How to replace windshield washer reservoir in a 2001 cavalier

SOURCE: windshield washer reservoir tank is leaking how do I replace?

You must remove from it's mount and empty out any fluids that is in tank.fill the tank with water and locate where the leak is coming from. wash tank a few times and the let dry upside down. Get some sand paper (80  grit course) and sand area where leak is, clean area with a vacume or clean rag.you can buy a 2 stage epoxy that comes in an injection form and squeeze it out on a pc of paper and then get a q-tip and mix the 2 components together, fill the crack or hole generously with the q-tip, if you have to,let dry for 24 hours and mix more and put more on. let dry another 24 hours, replace tank back in it's place and you've solved your leak. (epoxy does wonders if its used properly.
Frankthetank

SOURCE: Windshield washer fluid will not pump

the windshield washer pump might be bad. It should be located somewhere on the reservoir

SOURCE: Removing the windshield washer reservoir in a 2002 Chrysler T&C

REMOVAL

1. Disconnect and isolate the battery negative cable.
2. Remove the engine fresh air housing inside the engine compartment.
3. Disconnect the washer hose at the in-line connector forward of the cowl grille so that the in-line connector remains with the washer hose from the fresh air plenum.
4. Disconnect the washer hose from the hose clip located on the front fender side shield.
5. Remove the filler tube screw.
6. Hoist and support vehicle on hoist or jack stands.
7. Remove the right front wheel and tire assembly.
8. Disconnect the left right front wheelhouse splash shield and move aside.
9. Drain washer fluid from the reservoir and into a suitable clean container. This can be done by disconnecting the windshield washer hose from the front (outboard) washer pump and allowing the washer fluid to drain into a container through a temporary jumper hose connected to the front washer pump.
10. Disconnect the electrical body harness connectors to the washer pump motors and the fluid level sensor. Slide the red lock on the connector to the release position, then, depress the black tab and pull the connector off the pump or sensor.
11. Remove the two reservoir mounting screws.
12. Disconnect the reservoir from the body mount by raising the reservoir upward slightly and then down so that the reservoir filler neck and front washer hose pull through the opening in the front fender side shield.

1. Push filler neck and front washer hose through the opening in the front fender side shield. Connect the reservoir to the body mount by lowering the reservoir down.
2. Install the two reservoir mounting screws. Torque screws to 8.5 - 11.3 Nm (75 - 100 in. lbs.) .
3. Connect the electrical body harness connectors to the washer pump motors and the fluid level sensor. Slide the red lock on the connector to the closed or locked position.
4. Assure that washer is properly routed to prevent pinching and possible inoperative washers.
5. Connect the left right front wheelhouse splash shield and move aside.
6. Install the right front wheel and tire assembly.
7. lower vehicle from hoist or jack stands.
8. Install the filler tube screw. Torque screw to 8.5 - 11.3 Nm (75 - 100 in. lbs.) .
9. Connect the washer hose to the hose clip located on the front fender side shield.
10. Connect the washer hose at the in-line connector forward of the cowl grille.
11. Install the engine fresh air housing inside the engine compartment.
12. Connect the battery negative cable.
13. Verify system operation.

SOURCE: windshield washer fluid reservoir - MB ML 350

right where the lines connect to reservoir, has little black seals that leak. I recommend removing reservoir, empty it out, then use RTV silicone and place it between seals and reservoir. Let it dry for FULL day. than reinstall.

SOURCE: Replace 2001 silverado 1500 4x4 windshield washer fluid reservoir

the only solution acording to the manual is to replace the reservoir... not much to say about that, u do have the option to patch it...be careful with the product u use to glue that patch.
take care