Charge Air Cooling System Draining and Filling (Static LM2 with RC1)

Charge Air Cooling System Draining and Filling (Static LM2 with RC1) Special Tool GE-26568 Coolant and Battery Tester 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 (Static LM2 with RC1) — figure 1

3. Front Bumper Fascia Skid Plate Bolt (1) » Remove [4x]
4. Underbody Skid Shield Bolt (2) » Remove [4x]

Charge Air Cooling System Draining and Filling (Static LM2 with RC1) — figure 2

5. Underbody Splash Shield (1) » Remove
6. Place a drain pan under the vehicle.

Charge Air Cooling System Draining and Filling (Static LM2 with RC1) — 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. Underbody Splash Shield (1) » Install

Caution

Refer to Fastener Caution.

13. Underbody Skid Shield Bolt (2) » Install and tighten [4x] — Fastener Specifications
14. Front Bumper Fascia Skid Plate Bolt (1) » Install and tighten [4x] — 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 Filling Procedure

Caution

The procedure below must be followed. Improper coolant level could result in a low or high coolant level condition, causing engine damage.

Note

Use a 50/50 mixture of DEX-COOL antifreeze and clean, drinkable water.

1. Prepare a quantity of coolant equal to the charge air cooling system capacity. Adhesives, Fluids, Lubricants, and Sealers Approximate Fluid Capacities
2. Inspect the concentration of the coolant mixture using GE-26568 Coolant and Battery Fluid Tester.
3. Slowly fill the cooling system to the coolant fill line with the proper coolant mixture .
4. Install charge air cooler coolant filler cap.
5. Start the engine.
6. Run the engine at 2,000-2,500 RPM until the engine reaches normal operating temperature. Engine should reach an operating temperature of 86°C (187°F).
7. Allow the engine to idle for 3 minutes.
8. Turn the engine OFF.
9. Allow the engine to cool.
10. Remove charge air cooler coolant filler cap.
11. Fill the cooling system to the proper level.
12. Install charge air cooler coolant filler cap.
13. Rinse away any excess coolant from the engine and the engine compartment.