Charge Air Cooling System Draining and Filling (GE 47716 LM2)

Charge Air Cooling System Draining and Filling (GE 47716 LM2) Special Tools GE-26568 Coolant and Battery Tester GE-46143-A Cooling System Adapter GE-47716 Vac-N-Fill Coolant Refill Tool Equivalent regional tools: Special Tools Draining Procedure

Warning

To avoid being burned, do not remove the radiator cap or surge tank cap while the engine is hot. The cooling system will release scalding fluid and steam under pressure if radiator cap or surge tank cap is removed while the engine and radiator are still hot.

1. Remove charge air cooler coolant filler cap.
2. Raise and support the vehicle. Lifting and Jacking the Vehicle

Charge Air Cooling System Draining and Filling (GE 47716 LM2) — figure 1

Note

Quantity of fasteners may vary based on option content.

3. Front Bumper Fascia Air Deflector Bolt (1) » Remove [10x]
4. Front Bumper Fascia Extension Bolt (2) » Remove [8x]

Charge Air Cooling System Draining and Filling (GE 47716 LM2) — figure 2

5. Pull the front bumper fascia extension (1) rearward and down from the front bumper fascia.
6. Place a drain pan under the vehicle.

Charge Air Cooling System Draining and Filling (GE 47716 LM2) — figure 3

7. Auxiliary Radiator Inlet Hose Clamp (1) » Disengage — Hose Clamp Replacement Guidelines - Spring Type

8. Separate the auxiliary radiator inlet hose (2) at the hose connector.

9. Drain the cooling system.

10. Connect the auxiliary radiator inlet hose (2) to the hose connector.

11. Auxiliary Radiator Inlet Hose Clamp (1) » Engage — Hose Clamp Replacement Guidelines - Spring Type

12. Front Bumper Fascia Extension (1) » Install

Caution

Refer to Fastener Caution.

Note

Quantity of fasteners may vary based on option content.

13. Front Bumper Fascia Extension Bolt (2) » Install and tighten [8x] — Fastener Specifications
14. Front Bumper Fascia Air Deflector Bolt (1) » Install and tighten [10x] — Fastener Specifications
15. Remove the drain pan.
16. Lower the vehicle.
17. Inspect the coolant.
18. If the coolant is discolored, perform the flushing procedure. Flushing Vac-N-Fill Procedure

Charge Air Cooling System Draining and Filling (GE 47716 LM2) — figure 4

1. Attach GE-46143-A Cooling System Adapter (1) to the charge air cooler surge tank.
2. Attach Vac-N-Fill cap to GE-42401-A Radiator Cap and Surge Tank Test Adapter (1).

Charge Air Cooling System Draining and Filling (GE 47716 LM2) — figure 5

3. Attach the vacuum gauge assembly (1) to the Vac-N-Fill cap (2).

Charge Air Cooling System Draining and Filling (GE 47716 LM2) — figure 6

4. Attach the fill hose (1) to the barb fitting on the vacuum gauge assembly (2). Ensure that the valve is closed.

Note

Use a 50/50 mixture of DEX-COOL antifreeze and clean, drinkable water. Always use more coolant than necessary. This will eliminate air from being drawn into the cooling system.

5. Prepare a quantity of coolant in the graduated reservoir slightly greater than the charge air cooling system capacity. Adhesives, Fluids, Lubricants, and Sealers Approximate Fluid Capacities
6. Inspect the concentration of the coolant mixture using GE-26568 Coolant and Battery Fluid Tester.

Charge Air Cooling System Draining and Filling (GE 47716 LM2) — figure 7

Note

Prior to installing the vacuum tank onto the graduated reservoir, ensure that the drain valve located on the bottom of the tank is closed.

7. Pour the coolant mixture into the graduated reservoir (1).
8. Place the fill hose in the graduated reservoir (1).
9. Install the vacuum tank (2) on the graduated reservoir with the fill hose routed through the cut-out area (3) in the vacuum tank.

Charge Air Cooling System Draining and Filling (GE 47716 LM2) — figure 8

10. Attach the venturi assembly (1) to the vacuum tank (2).

Charge Air Cooling System Draining and Filling (GE 47716 LM2) — figure 9

11. Attach a shop air hose to the venturi assembly (1). Ensure the valve (2) on the venturi assembly is closed.

Charge Air Cooling System Draining and Filling (GE 47716 LM2) — figure 10

12. Attach the vacuum hose (1) to the vacuum gauge assembly (2) and the vacuum tank (3).

Charge Air Cooling System Draining and Filling (GE 47716 LM2) — figure 11

13. Open the valve (1) on the venturi assembly (2). The vacuum gauge will begin to rise and a hissing noise will be present.

Charge Air Cooling System Draining and Filling (GE 47716 LM2) — figure 12

14. Continue to draw vacuum until the needle stops rising (1). This should be 610-660 mm Hg (24-26 in Hg). Coolant hoses may start to collapse. This is normal due to vacuum draw.
15. To aid in the fill process, position the graduated reservoir above the coolant fill port.

Charge Air Cooling System Draining and Filling (GE 47716 LM2) — figure 13

16. Slowly open the valve (1) on the vacuum gauge assembly (2). When the coolant reaches the top of the fill hose, close the valve. This will eliminate air from the fill hose.
17. Close the valve on the venture assembly.
18. If there is a suspected leak in the cooling system, allow the system to stabilize under vacuum and monitor for vacuum loss. If vacuum loss is observed, refer to Loss of Coolant.
19. Open the valve on the vacuum gauge assembly. The vacuum gauge will drop as coolant is drawn into the system.

Charge Air Cooling System Draining and Filling (GE 47716 LM2) — figure 14

20. Once the vacuum gauge reaches zero (1), close the valve on the vacuum gauge assembly and repeat steps 12–18.

21. Detach the Vac-N-Fill cap from the GE-46143-A Cooling System Adapter.

22. Remove GE-46143-A Cooling System Adapter (1) from the charge air cooler surge tank.

23. Fill the cooling system to the proper level.

Note

After filling the cooling system, the extraction hose can be used to remove excess coolant to achieve the proper coolant level.

24. Detach the vacuum hose form the vacuum gauge assembly.

Charge Air Cooling System Draining and Filling (GE 47716 LM2) — figure 15

25. Attach the extraction hose (1) to the vacuum hose (2).

Charge Air Cooling System Draining and Filling (GE 47716 LM2) — figure 16

26. Open the valve (1) on the venturi assembly (2) to start a vacuum draw.

Charge Air Cooling System Draining and Filling (GE 47716 LM2) — figure 17

27. Use the extraction hose (1) to draw out coolant to the proper level.
28. The vacuum tank has a drain valve on the bottom of the tank. Open the valve to drain coolant from the vacuum tank into a suitable container for disposal.
29. Install the charge air cooler coolant filler cap.