Tools and materials needed:
- New Thermostat
- Thermostat gasket (if not included with new thermostat)
- 5/8-inch wrench or socket set
- Pliers
- Coolant
- Funnel
- Rags
- Safety glasses
1. Prepare the Car:
- Turn off the engine and let it cool down completely.
- Engage the parking brake and open the hood.
2. Locate the Thermostat Housing:
- The thermostat housing is usually located on the front or side of the engine, near the upper radiator hose.
3. Remove the Radiator Cap:
- Locate the radiator cap and slowly turn it counterclockwise to release pressure from the cooling system. Wait until the hissing sound stops.
4. Drain the Coolant:
- Place a drain pan under the radiator drain plug, which is usually located at the bottom of the radiator.
- Loosen the drain plug with a wrench and allow the coolant to drain. Be careful not to spill coolant on yourself or the engine components.
5. Remove the Thermostat Housing Bolts:
- Locate the thermostat housing bolts and remove them using the appropriate socket or wrench.
- There might be 2-3 bolts to remove to access the thermostat.
6. Remove the Old Thermostat:
- Carefully remove the thermostat housing cover and gasket, exposing the old thermostat.
- Remove the old thermostat from the housing.
7. Clean the Housing:
- Clean the thermostat housing and the sealing surface to remove any old gasket material or debris.
8. Install the New Thermostat:
- Position the new thermostat inside the housing, ensuring that it sits properly in its seat.
9. Install the Thermostat Housing Cover:
- Reinstall the thermostat housing cover, making sure the new gasket is properly in place.
10. Reinstall the Bolts:
- Reinstall the thermostat housing bolts and tighten them securely.
11. Refill the Coolant:
- Use a funnel to add new coolant to the radiator.
- Refill the coolant reservoir to the recommended level, usually indicated on the side of the reservoir.
12. Test the System:
- Start the engine and let it run for a few minutes.
- Check for any leaks around the thermostat housing or hoses.
- Monitor the temperature gauge to make sure the engine reaches its normal operating temperature.
Once you're sure everything is in order, close the hood and you're done.
