Fuel Cooler Flush
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Elder User
Joined: Aug 2008
Posts: 821
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From: 50450 IOWA
Fuel Cooler Flush
ok so from what i have read the small reservoir with a radiator cap near the firewall is for the fuel cooler system correct? how much antifreeze does this hold? how often should this be changed? can you flush it like the regular cooling system? if so where do you drain? thanks guys!
Laughing Gas
Joined: Feb 2007
Posts: 950
Likes: 6
From: Waco, Texas
Fuel and Turbocharger Cooling System Draining, Filling and Bleeding for 6.4L
Draining
WARNING: Always allow the engine to cool before opening the cooling system. Do not unscrew the coolant pressure relief cap when the engine is operating or the cooling system is hot. The cooling system is under pressure; steam and hot liquid can come out forcefully when the cap is loosened slightly. Failure to follow these instructions may result in serious personal injury.
1. Allow the fuel cooling system to cool and remove the pressure relief cap.
2. Disconnect the coolant hoses at the fuel cooling system radiator and drain the coolant into an appropriate container.
Filling and Bleeding
1. Connect the coolant hoses at the fuel cooling system radiator.
2. NOTE: The side bolt does not have to be removed to remove the fuel cooling system radiator.
Remove the fuel cooling system radiator top bolt.
3. Slide the fuel and turbocharger cooling system radiator up off the side bolt and position the radiator horizontally.
4. Remove the plug from the turbocharger actuator cooler.
5. Fill the fuel and turbocharger cooling system through the expansion tank until the coolant reaches the top of the turbocharger actuator plug hole.
6. Install the turbocharger cooler plug. Tighten to 33 Nm (24 lb-ft).
7. NOTE: If the coolant pump does not operate when the ignition switch is turned to the RUN position, disconnect the coolant pump-to-fuel cooler hose from the fuel cooler, place the end of the hose in a clear container and run the engine until the coolant pump turns on and coolant starts to fill the container. Shut the engine off, connect the coolant pump-to-fuel cooler hose to the fuel cooler and proceed with the bleed procedure.
Turn the ignition switch to the RUN position to activate the coolant pump. Allow the coolant pump to run for one minute.
8. Turn the ignition switch to the OFF position.
9. Remove the plug from the turbocharger actuator cooler.
10. Fill the fuel and turbocharger cooling system through the expansion tank until the coolant reaches the top of the turbocharger actuator plug hole.
11. Install the turbocharger actuator cooler plug. Tighten to 33 Nm (24 lb-ft).
12. Fill the coolant expansion tank until the coolant in the coolant expansion tank is visible through the site glass.
13. Position the fuel and turbocharger cooling system radiator and install the bolt. Tighten to 12 Nm (9 lb-ft).
14. Install the pressure relief cap.
15. Clean any coolant that may have spilled on the engine components.
Or go to this link:
H&S Performance :: Topic: 6.4 fuel cooler (1/1)
Draining
WARNING: Always allow the engine to cool before opening the cooling system. Do not unscrew the coolant pressure relief cap when the engine is operating or the cooling system is hot. The cooling system is under pressure; steam and hot liquid can come out forcefully when the cap is loosened slightly. Failure to follow these instructions may result in serious personal injury.
1. Allow the fuel cooling system to cool and remove the pressure relief cap.
2. Disconnect the coolant hoses at the fuel cooling system radiator and drain the coolant into an appropriate container.
Filling and Bleeding
1. Connect the coolant hoses at the fuel cooling system radiator.
2. NOTE: The side bolt does not have to be removed to remove the fuel cooling system radiator.
Remove the fuel cooling system radiator top bolt.
3. Slide the fuel and turbocharger cooling system radiator up off the side bolt and position the radiator horizontally.
4. Remove the plug from the turbocharger actuator cooler.
5. Fill the fuel and turbocharger cooling system through the expansion tank until the coolant reaches the top of the turbocharger actuator plug hole.
6. Install the turbocharger cooler plug. Tighten to 33 Nm (24 lb-ft).
7. NOTE: If the coolant pump does not operate when the ignition switch is turned to the RUN position, disconnect the coolant pump-to-fuel cooler hose from the fuel cooler, place the end of the hose in a clear container and run the engine until the coolant pump turns on and coolant starts to fill the container. Shut the engine off, connect the coolant pump-to-fuel cooler hose to the fuel cooler and proceed with the bleed procedure.
Turn the ignition switch to the RUN position to activate the coolant pump. Allow the coolant pump to run for one minute.
8. Turn the ignition switch to the OFF position.
9. Remove the plug from the turbocharger actuator cooler.
10. Fill the fuel and turbocharger cooling system through the expansion tank until the coolant reaches the top of the turbocharger actuator plug hole.
11. Install the turbocharger actuator cooler plug. Tighten to 33 Nm (24 lb-ft).
12. Fill the coolant expansion tank until the coolant in the coolant expansion tank is visible through the site glass.
13. Position the fuel and turbocharger cooling system radiator and install the bolt. Tighten to 12 Nm (9 lb-ft).
14. Install the pressure relief cap.
15. Clean any coolant that may have spilled on the engine components.
Or go to this link:
H&S Performance :: Topic: 6.4 fuel cooler (1/1)
Super Moderator
Joined: Aug 2008
Posts: 37,384
Likes: 1,868
From: Frederick, MD
Fuel and Turbocharger Cooling System Draining, Filling and Bleeding for 6.4L
Draining
WARNING: Always allow the engine to cool before opening the cooling system. Do not unscrew the coolant pressure relief cap when the engine is operating or the cooling system is hot. The cooling system is under pressure; steam and hot liquid can come out forcefully when the cap is loosened slightly. Failure to follow these instructions may result in serious personal injury.
1. Allow the fuel cooling system to cool and remove the pressure relief cap.
2. Disconnect the coolant hoses at the fuel cooling system radiator and drain the coolant into an appropriate container.
Filling and Bleeding
1. Connect the coolant hoses at the fuel cooling system radiator.
2. NOTE: The side bolt does not have to be removed to remove the fuel cooling system radiator.
Remove the fuel cooling system radiator top bolt.
3. Slide the fuel and turbocharger cooling system radiator up off the side bolt and position the radiator horizontally.
4. Remove the plug from the turbocharger actuator cooler.
5. Fill the fuel and turbocharger cooling system through the expansion tank until the coolant reaches the top of the turbocharger actuator plug hole.
6. Install the turbocharger cooler plug. Tighten to 33 Nm (24 lb-ft).
7. NOTE: If the coolant pump does not operate when the ignition switch is turned to the RUN position, disconnect the coolant pump-to-fuel cooler hose from the fuel cooler, place the end of the hose in a clear container and run the engine until the coolant pump turns on and coolant starts to fill the container. Shut the engine off, connect the coolant pump-to-fuel cooler hose to the fuel cooler and proceed with the bleed procedure.
Turn the ignition switch to the RUN position to activate the coolant pump. Allow the coolant pump to run for one minute.
8. Turn the ignition switch to the OFF position.
9. Remove the plug from the turbocharger actuator cooler.
10. Fill the fuel and turbocharger cooling system through the expansion tank until the coolant reaches the top of the turbocharger actuator plug hole.
11. Install the turbocharger actuator cooler plug. Tighten to 33 Nm (24 lb-ft).
12. Fill the coolant expansion tank until the coolant in the coolant expansion tank is visible through the site glass.
13. Position the fuel and turbocharger cooling system radiator and install the bolt. Tighten to 12 Nm (9 lb-ft).
14. Install the pressure relief cap.
15. Clean any coolant that may have spilled on the engine components.
Or go to this link:
H&S Performance :: Topic: 6.4 fuel cooler (1/1)
Draining
WARNING: Always allow the engine to cool before opening the cooling system. Do not unscrew the coolant pressure relief cap when the engine is operating or the cooling system is hot. The cooling system is under pressure; steam and hot liquid can come out forcefully when the cap is loosened slightly. Failure to follow these instructions may result in serious personal injury.
1. Allow the fuel cooling system to cool and remove the pressure relief cap.
2. Disconnect the coolant hoses at the fuel cooling system radiator and drain the coolant into an appropriate container.
Filling and Bleeding
1. Connect the coolant hoses at the fuel cooling system radiator.
2. NOTE: The side bolt does not have to be removed to remove the fuel cooling system radiator.
Remove the fuel cooling system radiator top bolt.
3. Slide the fuel and turbocharger cooling system radiator up off the side bolt and position the radiator horizontally.
4. Remove the plug from the turbocharger actuator cooler.
5. Fill the fuel and turbocharger cooling system through the expansion tank until the coolant reaches the top of the turbocharger actuator plug hole.
6. Install the turbocharger cooler plug. Tighten to 33 Nm (24 lb-ft).
7. NOTE: If the coolant pump does not operate when the ignition switch is turned to the RUN position, disconnect the coolant pump-to-fuel cooler hose from the fuel cooler, place the end of the hose in a clear container and run the engine until the coolant pump turns on and coolant starts to fill the container. Shut the engine off, connect the coolant pump-to-fuel cooler hose to the fuel cooler and proceed with the bleed procedure.
Turn the ignition switch to the RUN position to activate the coolant pump. Allow the coolant pump to run for one minute.
8. Turn the ignition switch to the OFF position.
9. Remove the plug from the turbocharger actuator cooler.
10. Fill the fuel and turbocharger cooling system through the expansion tank until the coolant reaches the top of the turbocharger actuator plug hole.
11. Install the turbocharger actuator cooler plug. Tighten to 33 Nm (24 lb-ft).
12. Fill the coolant expansion tank until the coolant in the coolant expansion tank is visible through the site glass.
13. Position the fuel and turbocharger cooling system radiator and install the bolt. Tighten to 12 Nm (9 lb-ft).
14. Install the pressure relief cap.
15. Clean any coolant that may have spilled on the engine components.
Or go to this link:
H&S Performance :: Topic: 6.4 fuel cooler (1/1)
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