- Joined
- November 11, 2005
- Messages
- 57,110
- Reaction score
- 1,321
- City, State
- Brooklyn, NY
- Year, Model & Trim Level
- 88 89 93 95 96 Aerostars
Draining coolant doesn't loosen up all of the rust, and dirt in the system. It is recommended to do a system flush. Here is the procedure:
1. Attach a flush tee in one of your heater core hoses.
2. Open your radiator drain **** valve, and drain your coolant. Close the valve when you are finished.
3. Attach a garden hose, and remove the radiator cap.
4. Flush with water until the water coming out is clear.
5. Add some cooling system cleaner, like the one from Prestone. Put back on your radiator cap, and flush tee cap. Run the engine until it is hot. Keep your heater on throughout this entire procedure.
6. Drain your cooling system, and reconnect the garden hose. Flush your system again until you get clear water coming out.
7. Drain your radiator. Add some coolant, water, and anti rust. Prestone also makes anti rust.
8. Run your engine with the radiator cap off, and check the coolant level in the radiator. You will see the level drop when you start the engine. Add a little water if necessary to obtain the proper mixture. Put the cap back on.
9. Run your engine for a few minutes, and check to see if you have heat coming out of the interior vents.
10. Wait until your engine has cooled down to open the radiator cap. Check your coolant level once more, and the level in your overflow tank. As a extra precaution (optional) you could use a radiator pressure tester like the one made by Stant to check for any leaks. It is best to do this at the end, and not the beginning. If there is some area that was sealed from leakage because of a sludge build up, it will be more noticeable at the end.
1. Attach a flush tee in one of your heater core hoses.
2. Open your radiator drain **** valve, and drain your coolant. Close the valve when you are finished.
3. Attach a garden hose, and remove the radiator cap.
4. Flush with water until the water coming out is clear.
5. Add some cooling system cleaner, like the one from Prestone. Put back on your radiator cap, and flush tee cap. Run the engine until it is hot. Keep your heater on throughout this entire procedure.
6. Drain your cooling system, and reconnect the garden hose. Flush your system again until you get clear water coming out.
7. Drain your radiator. Add some coolant, water, and anti rust. Prestone also makes anti rust.
8. Run your engine with the radiator cap off, and check the coolant level in the radiator. You will see the level drop when you start the engine. Add a little water if necessary to obtain the proper mixture. Put the cap back on.
9. Run your engine for a few minutes, and check to see if you have heat coming out of the interior vents.
10. Wait until your engine has cooled down to open the radiator cap. Check your coolant level once more, and the level in your overflow tank. As a extra precaution (optional) you could use a radiator pressure tester like the one made by Stant to check for any leaks. It is best to do this at the end, and not the beginning. If there is some area that was sealed from leakage because of a sludge build up, it will be more noticeable at the end.