1. Park your car on level ground and turn off the engine. Allow the engine to cool down completely.
2. Remove the radiator cap.
3. Attach a hose to the bleeder screw located on the top of the thermostat housing. The bleeder screw is usually a small, plastic screw with a slot head.
4. Open the bleeder screw and allow the coolant to drain into a drain pan. Continue draining the coolant until the coolant stream is free of air bubbles.
5. Close the bleeder screw.
6. Fill the radiator with coolant until it reaches the "FULL" mark on the coolant reservoir.
7. Start the engine and let it run for a few minutes.
8. Check the coolant level in the coolant reservoir and top it off if necessary.
9. Replace the radiator cap.
10. Test drive the vehicle and check for any leaks in the cooling system.
Here are some additional tips for purging the cooling system:
- Use a funnel to add coolant to the radiator to prevent spills.
- Be careful not to overfill the radiator, as this can cause the engine to overheat.
- If you have difficulty purging the cooling system, you may need to take your vehicle to a mechanic.
By following these steps, you can safely and effectively purge the cooling system for your 1999 Honda Civic.
