1. Release the pressure in the cooling system. Make sure the engine is cool. Wrap a thick cloth around the coolant            pressure relief cap on the coolant reservoir. Slowly turn the cap counterclockwise (left) until the pressure begins to      release. Step back while the pressure releases. When you are sure all the pressure has been released, use the cloth        to turn and remove the cap.
2. Place a suitable container below the radiator draincock. If equipped, disconnect the coolant return hose at the oil         cooler.
3. Open the radiator draincock. Remove the cylinder drain plug, if equipped, and drain the coolant from the cylinder       block into a suitable container.
4. When the coolant is drained, make sure drain plugs are installed and tight.
5. Close the radiator draincock when finished.


1. Add the correct engine coolant mixture to the degas bottle.
2. Move the temperature blend selector to the full warm position.
3. Run the engine until it reaches operating temperature.
4. Add the proper engine coolant mixture to the degas bottle until the coolant level is between the “COOLANT FILL         LEVEL” marks.
5. Turn off the engine and allow the cooling system to cool.
6. Repeat steps 1-5 until the degas bottle level is okay.


1. Select the maximum heater temperature and blower motor speed settings.

2. Position the control to discharge air at A/C vents in instrument panel.
3. Start the engine and allow to idle. While engine is idling, feel for hot air at A/C vents.

4. Shut the engine off and allow to cool.
5. Check the engine for coolant leaks.
6. Check the engine coolant level in degas bottle and fill as necessary.


24. August 2021 by samuel
Categories: 7.3L Power Stroke | Comments Off on 7.3L Power Stroke – COOLING SYSTEM BLEEDING