Tools You'll Need:
* Repair manual: Absolutely crucial for torque specs and specific procedures.
* Jack and jack stands: Safety first! Never work under a car supported only by a jack.
* Wheel chocks: To further secure the vehicle.
* Wrench set (metric): Various sizes, including sockets, ratchets, and extensions.
* Screwdrivers (Phillips and flathead):
* Pliers: Needle-nose and regular.
* Drain pan: To catch coolant.
* New water pump: Make sure you get the correct one for your engine.
* New coolant: Use the correct type and amount specified in your owner's manual.
* New thermostat (recommended): Since you're already in there, replacing this is a good preventative measure.
* New gasket(s): For the water pump and possibly other components.
* Gloves: To protect your hands.
* Safety glasses: To protect your eyes.
General Steps (This is a simplified overview – refer to your repair manual):
1. Drain the coolant: Locate the coolant drain plug (usually on the engine block's lower radiator hose) and carefully drain the coolant into your drain pan.
2. Disconnect the battery: This is an important safety precaution to prevent accidental shorts.
3. Remove the serpentine belt: Consult your repair manual for the proper procedure. This usually involves loosening tensioner pulleys.
4. Remove the fan and shroud (if applicable): This may involve removing fan screws or shroud clips.
5. Remove the water pump pulley: This will likely require a pulley puller; this tool is sometimes rented from auto parts stores.
6. Disconnect hoses: Carefully disconnect the upper and lower radiator hoses from the water pump. Have a rag handy to absorb any remaining coolant.
7. Remove the water pump bolts: These are usually located on the sides of the water pump. Be prepared for some resistance; they might be stuck due to corrosion. Penetrating oil can help.
8. Remove the old water pump: Once all bolts are removed, carefully pry the old water pump off. Be mindful of the gasket.
9. Clean the mating surface: Thoroughly clean the engine block surface where the new water pump will mount. Ensure no old gasket material remains.
10. Install the new water pump: Carefully align the new water pump and install it with the new gasket. Tighten the bolts to the specifications in your repair manual. Do not overtighten!
11. Reconnect hoses: Attach the upper and lower radiator hoses to the new water pump.
12. Reinstall the pulley: Use the pulley installer if needed.
13. Reinstall the fan and shroud (if applicable):
14. Reinstall the serpentine belt: Ensure the belt is properly routed around all pulleys.
15. Reconnect the battery:
16. Refill the coolant system: Add the correct type and amount of coolant, as specified in your owner's manual. Bleed the system of air (this is crucial to avoid overheating). Consult your manual on the proper bleeding procedure.
17. Run the engine: Let the engine run for a while to check for leaks and ensure the thermostat is working correctly. Monitor the temperature gauge.
Important Considerations:
* Rust and corrosion: Bolts and other parts might be rusted or corroded, requiring extra care and potentially penetrating oil.
* Torque specifications: Follow your repair manual meticulously; improper torque can damage the water pump and engine.
* Coolant type: Use the correct type of coolant recommended for your vehicle. Mixing different coolants can cause problems.
* Safety: Work in a well-ventilated area. Coolant is toxic.
This is a general outline. Always consult a repair manual specific to your 2000 Chevy Cavalier's engine before attempting this repair. If you are unsure about any step, it's best to seek professional help. Improper repair could lead to engine damage.
