Tools and Materials Needed
- Replacement water pump
- New thermostat and gasket (optional)
- Pliers
- Screwdriver
- Wrench set
- Funnel
- Coolant
- Drain pan
- Jack and jack stands (if needed)
Instructions:
1. Park your vehicle on a level surface, engage the parking brake, and allow the engine to cool down completely. If the engine is still hot, there is a risk of scalding yourself with hot coolant.
2. Raise the front end of your vehicle using a jack and jack stands or ramps. Follow your vehicle's specific instructions for safe lifting.
3. Locate the drain plug on the radiator and place a drain pan beneath it. Open the drain plug to drain the coolant from the system. Allow the coolant to drain completely.
4. Disconnect the upper and lower radiator hoses from the water pump. Use pliers to loosen the hose clamps and then pull the hoses off the pump nipples.
5. Remove the bolts or screws that hold the water pump in place. Use a wrench set to loosen the bolts or screws and remove the water pump. Be careful not to drop any of the bolts or screws into the engine compartment.
6. Clean the mating surface of the water pump and the engine block. Remove any old gasket material or sealant from the surfaces.
7. Install the new water pump gasket or sealant to the mating surface of the water pump. Make sure the gasket or sealant is properly seated.
8. Position the new water pump onto the engine block and secure it with the bolts or screws. Tighten the bolts or screws to the specified torque.
9. Reconnect the upper and lower radiator hoses to the water pump. Secure the hoses with the hose clamps.
10. Refill the cooling system with coolant. Use the funnel to slowly pour coolant into the radiator. Add coolant until the reservoir is full.
11. Start the engine and let it run for a few minutes. This will help circulate the coolant throughout the system. Check for any leaks around the water pump and hoses.
12. Turn off the engine and allow it to cool down. Recheck the coolant level and add more if necessary.
13. Test drive the vehicle to ensure the new water pump is functioning properly. Monitor the temperature gauge to make sure the engine is not overheating.
This completes the process of replacing the water pump on a 1989 Toyota Tercel Hatchback 1.5L.
