1. Prepare the Replacement Water Pump:
- Ensure that the new pump is the correct fit and model for your vehicle.
- Remove any packaging and inspect the new water pump for damage or defects.
- Apply sealant to the gasket surface (typically included with the water pump or sealant kit).
2. Cool the Engine:
- Allow the engine to cool down completely to avoid burns.
- Disconnect the negative terminal of the car battery for safety.
3. Drain the Coolant:
- Locate the drain plug on the bottom of the radiator.
- Place a drain pan underneath to catch the draining coolant.
- Remove the drain plug and let all the coolant drain out.
- Replace the drain plug once the coolant stops flowing.
4. Remove the Old Water Pump:
- Disconnect the coolant hoses and bypass hose (if applicable) attached to the old water pump.
- Use a wrench or socket set to loosen and remove the bolts holding the old water pump.
- Be careful as there might be a remaining small amount of coolant inside.
- Clean the mounting surface of the old gasket and remove any gasket debris.
5. Install the New Water Pump:
- Position the new water pump into place, aligning the mounting holes with the bolts.
- Hand-tighten the bolts to hold the water pump in place.
- Use a wrench or socket set to fully tighten the bolts in a crisscross pattern.
- Reconnect the coolant hoses and bypass hose (if applicable).
6. Refill the Coolant:
- Remove the radiator cap and slowly add the designated amount and type of coolant.
- Mix the coolant with water according to the specified ratio (usually 50/50).
- Keep adding coolant until the reservoir and radiator are full.
7. Bleed the Cooling System:
- Start the engine and let it run for a few minutes with the radiator cap off.
- Allow air bubbles to escape from the system.
- Add more coolant if necessary to maintain proper levels.
8. Test the System:
- Replace the radiator cap and take the car for a short drive.
- Check for any leaks, unusual sounds, or temperature fluctuations from the engine.
9. Reconnect Battery and Clean Up:
- Reconnect the negative terminal of the car battery.
- Clean up any spilled coolant and dispose of it properly.
Remember, specific details may vary depending on the exact model and year of your Toyota Celica. It is always a good practice to consult your car's service manual or seek guidance from a professional mechanic if you are not confident in performing these tasks yourself.