For 1990-2009 cars

# Instructions for Using GE-47716 Vac-N-Fill Coolant Refill Tool

Subject: | Instructions for Using GE-47716 Vac-N-Fill Coolant Refill Tool

Models: | 2005 and Prior Passenger Cars and Light Duty Trucks

| 2005 and Prior Chevrolet and GMC Medium Duty Trucks

| 2003-2005 HUMMER H2

| 2005 and Prior Saturn Vehicles

| 2005 and Prior Isuzu Medium Duty Trucks

### Using GE-47716 Vac-N-Fill Coolant Refill Tool

The advantage of the GE-47716 Vac-N-Fill tool is that is provides a complete cooling system fill while simultaneously purging air from the system. This can save time by eliminating the need to bleed the coolant system or thermocycle the engine when performing a coolant fill. The tool can be used on a full system, partially empty system, or a completely empty system. The tool can also be used to drain or partially drain coolant from some cooling system components using the extraction hose.

Caution: In order to avoid personal injury, do not remove the cap or open the cooling system drains from a hot system. Allow the system to cool first.

Important: To prevent boiling of the coolant/water mixture in the vehicle's cooling system, do not apply vacuum to a cooling system above 49°C (120°F). The tool will not operate properly when the coolant is boiling.

#### Before Using the Vac-N-Fill Coolant Refill Tool

• | Install an airline nipple to the Venturi Assembly.

• | The minimum shop air pressure requirement is 90 psi (620 kPa).

• | The shop air should have an air dryer system.

• | The heater control should be set to the heat position. The ignition may need to be turned to the ON position with the engine off.

#### Using Vac-N-Fill to Fill Cooling System

1. Attach the Vac-N-Fill cap (GE-47716-8) to the vehicle's coolant fill port. Install the cap adapters where required.
2. Attach the vacuum gauge assembly with valve (GE-47716-3)to the Vac-N-Fill cap (GE-47716-8). For some applications you may need to use the extension hose.
3. Attach the fill hose (GE-47716-5) to the barb fitting on the vacuum gauge assembly with valve (GE-47716-3). Ensure that the vacuum gauge assembly valve is closed.

Important: Always use more coolant than necessary. This will eliminate air from being drawn into the cooling system.

4. Pour the coolant mixture into the graduated reservoir (GE-47716-2).
5. Place the fill hose (GE-47716-5) in the graduated reservoir (GE-47716-2).
6. Install the vacuum tank (GE-47716-1) on the graduated reservoir (GE-47716-2) with the fill hose routed through the cut out area in the vacuum tank (GE-47716-1).
7. Attach the Venturi assembly (GE-47716-6) to the vacuum tank (GE-47716-1).
8. Attach a shop air hose to the Venturi assembly (GE-4776-6). Ensure the valve to the Venturi assembly is closed (GE-47716-6).
9. Attach the vacuum hose to the vacuum gauge assembly with valve (GE-47716-3) and the vacuum tank (GE-47716-1).

Important: Some overflow hoses may need to be clamped off to obtain proper vacuum level.

10. Open the valve on the Venturi assembly (GE-47716-6). The vacuum gauge will begin to rise and a hissing noise will be present.

Important: The cooling hoses may start to collapse. This is normal due to vacuum draw.

11. Continue to draw vacuum until the needle stops rising. This should be 610 mm to 660 mm Hg (24 to 26 in Hg).
12. To aid in the fill process, position the graduated reservoir (GE-47716-2) above the coolant fill port.
13. Slowly open the valve on the vacuum gauge assembly with valve (GE-47716-3). When the coolant reaches the top of the fill hose (GE-47716-5), close the valve. This will eliminate air from the fill hose (GE-47716-5).
14. Close the valve on the Venturi assembly (GE-47716-6). Allow the system to stabilize under vacuum for approximately two minutes. If there is a loss of vacuum, check the cooling system for leaks.
15. Open the valve on the vacuum gauge assembly with valve (GE-47716-3). The vacuum gauge will drop as coolant is drawn into the system.

Important: Most vehicles will only require the process to be repeated twice.

16. Once the gauge reaches zero, repeat Steps 10 through 15.
17. Detach the Vac-N-Fill cap (GE-47716-8) from the vehicle's coolant fill port. Remove the cap adapters as required.
18. Add coolant to the system as necessary. After filling the cooling system, the extraction hose (GE-47716-11) can be used to remove the excess coolant in order to achieve the proper coolant level.
19. Detach the vacuum hose (GE-47716-7) from the vacuum gauge assembly with valve (GE-47716-3).
20. Attach the extraction hose (GE-47716-11) to the vacuum hose (GE-47716-7).
21. Open the valve on the Venturi assembly (GE-47716-6) to start a vacuum draw.
22. Use the extraction hose (GE-47716-11) to draw out coolant to the proper level.
23. The vacuum tank (GE-47716-1) has a lever operated valve on the bottom. Open the valve to drain coolant from the vacuum tank (GE-47716-1) into a suitable container for disposal.

#### Components Included in Tool Kit

#### GE-47716-1 Vacuum Tank

#### GE-47716-2 Graduated Reservoir

#### GE-47716-3 Vacuum Gauge Assembly with Valve / GE-47716-4 Vacuum Gauge Only

#### GE-47716-5 Fill Hose

#### GE-47716-6 Venturi Assembly

#### GE-47716-7 Vacuum Hose

#### GE-47716-8 Vac-N-Fill Cap with Spacer/GE-47716-9 Spacer Only

#### GE-47716-10 Extension Hose

#### GE-47716-11 Extraction Hose