1. Park your vehicle on a level surface.
2. Turn off the engine and allow it to cool down completely.
3. Open the hood of your vehicle.
4. Locate the radiator drain plug. It is usually located at the bottom of the radiator, on the driver's side.
5. Place a drain pan under the drain plug.
6. Use a wrench to loosen the drain plug and allow the coolant to drain into the drain pan.
7. Once the coolant has stopped draining, close the drain plug and replace the drain pan.
8. Refill the radiator with fresh coolant.
9. Start the engine and allow it to run for a few minutes.
10. Check the coolant level and add more coolant if necessary.
Here are some additional tips for draining the radiator in your 1994 Nissan Sentra GXE:
* Be careful not to spill any coolant on the ground. Coolant is toxic and can harm the environment.
* If you are unable to loosen the drain plug, you may need to use a penetrating oil to loosen it.
* If the radiator is dirty, you may need to clean it before draining it. You can use a radiator cleaning product or a mixture of baking soda and water.
