Vac-N-Fill Procedure
- Close the two air bleeder valves (2) on the turbocharger water manifold and tighten to 12 N.m (106 lb in).
- Install absorbent rags under the CAC quick connect fitting to absorb any coolant loss.
- Ensure the CAC quick connect fitting is in the vertical position.
- Install the GE-47716-30A Vac-N-Fill Adapter (1) to the CAC quick connect fitting.
- Attach the Vac-N-Fill gauge assembly to GE-47716-30A Vac-N-Fill Adapter (1).
- Attach the vacuum gauge assembly to the Vac-N-Fill cap.
- Attach the fill hose (1) to the barb fitting on the vacuum gauge assembly (2).
Ensure that the valve is closed.
- Pour the coolant mixture into the graduated reservoir (1).
- Place the fill hose in the graduated reservoir (1).
- Install the vacuum tank (2) on the graduated reservoir with the fill hose routed through the cut-out area (3) in the vacuum tank.
- Attach the venturi assembly (1) to the vacuum tank (2).
- Attach a shop air hose to the venturi assembly (1).
Ensure the valve (2) on the venturi assembly is closed.
- Attach the vacuum hose (1) to the vacuum gauge assembly (2) and the vacuum tank (3).
- Open the valve (1) on the venturi assembly (2). The vacuum gauge will begin to rise and a hissing noise will be present.
- Continue to draw vacuum until the needle stops rising (1). This should be 610-660 mm Hg (24-26 in Hg).
Cooling hoses may start to collapse. This is normal due to vacuum draw.
- To aid in the fill process, position the graduated reservoir above the coolant fill port.
- 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.
- Close the valve on the venturi assembly.
- 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 .
- Open the valve on the vacuum gauge assembly. The vacuum gauge will drop as coolant is drawn into the system.
- Once the vacuum gauge reaches zero, close the valve on the vacuum gauge assembly and repeat steps 12-18 until the return hose going back to Vac-N-Fill Bucket is filled solid with coolant and no air bubbles are visible.
- Detach the Vac-N-Fill gauge assembly from the GE-47716-30A Vac-N-Fill Adapter (1).
- Remove the GE-47716-30A Vac-N-Fill Adapter (1) from the CAC quick connect fitting.
- Install the quick connect vacuum fitting charge air coolant cap.
- Inspect the CAC cooling system for leaks.
- Remove the absorbent rags.
- Rinse away any excess coolant from the engine and the engine compartment.
- Orientate the CAC quick connect fitting to the previously installed position to allow for engine cover clearance. Intake Manifold Vacuum Fitting Replacement (LF4) .
- Install the intake manifold cover. Intake Manifold Cover Replacement (LF4) .
- Install the front bumper fascia. Front Bumper Fascia Replacement (V) .
It is critical that the system must be completely free of air to prevent CAC pump noise and loss of system performance.
Use a 50/50 mixture of DEX-COOL antifreeze and clean, drinkable water.
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.
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.
Prior to installing the vacuum tank onto the graduated reservoir, ensure that the drain valve located on the bottom of the tank is closed.