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Using Air Evacuation Tool

WARNING:

ANTIFREEZE IS AN ETHYLENE GLYCOL BASE COOLANT AND IS HARMFUL IF SWALLOWED OR INHALED. IF SWALLOWED, DRINK TWO GLASSES OF WATER AND INDUCE VOMITING. IF INHALED, MOVE TO FRESH AIR AREA. SEEK MEDICAL ATTENTION IMMEDIATELY. DO NOT STORE IN OPEN OR UNMARKED CONTAINERS. WASH SKIN AND CLOTHING THOROUGHLY AFTER COMING IN CONTACT WITH ETHYLENE GLYCOL. KEEP OUT OF REACH OF CHILDREN. DISPOSE OF GLYCOL BASED COOLANT PROPERLY. CONTACT YOUR DEALER OR GOVERNMENT AGENCY FOR LOCATION OF COLLECTION CENTER IN YOUR AREA. DO NOT OPEN A COOLING SYSTEM WHEN THE ENGINE IS AT OPERATING TEMPERATURE OR HOT UNDER PRESSURE; PERSONAL INJURY CAN RESULT. AVOID RADIATOR COOLING FAN WHEN ENGINE COMPARTMENT RELATED SERVICE IS PERFORMED; PERSONAL INJURY CAN RESULT.

WARNING:

WEAR APPROPRIATE EYE AND HAND PROTECTION WHEN PERFORMING THIS PROCEDURE.

CAUTION:

Failure to purge air from the cooling system can result in an overheating condition and severe engine damage.

NOTE:

The preferred method to remove air from the cooling system is to use  (Special Tool No. 399-550000, Tool, UView Airlift™ Cooling System Refill).

GC0087430Courtesy of CHRYSLER GROUP, LLC

Evacuating or purging air from the cooling system involves the use of a pressurized air operated vacuum generator. The vacuum created allows for a quick and complete coolant refilling while removing any air pockets present in the system components.

NOTE:

The service area where this procedure is performed should have a minimum shop air requirement of 80 psi (5.5 bar) and should be equipped with an air dryer system.

NOTE:

For best results, the radiator should be empty. The vehicle's heater control should be set to the heat position (ignition may need to be turned to the ON position but do not start the engine).

  1. Refer to the service equipment tool's operating manual for specific assembly steps.
  2. Choose an appropriate adapter cone that will fit the vehicle's cooling system filler neck.
  3. Attach the adapter cone (2) to the vacuum gauge (1).
    GC0087431Courtesy of CHRYSLER GROUP, LLC
  4. Make sure the vacuum generator / venturi ball valve (3) is closed and attach an airline hose (2) (minimum shop air requirement of 80 psi / 5.5 bar) to the vacuum generator / venturi (1).
  5. Position the adaptor cone/vacuum gauge assembly on the filler neck. Make sure that the adapter cone is sealed properly.
    GC0087432Courtesy of CHRYSLER GROUP, LLC
  6. Connect the vacuum generator / venturi (2) to the positioned adaptor cone/vacuum gauge assembly (1).
    NOTE:

    Do not bump or move the assembly as it may result in loss of vacuum.

  7. Open the vacuum generator / venturi ball valve.
    NOTE:

    If a strong vacuum is being created in the system, it is normal to see the radiator hoses collapse.

  8. Let the system run until the vacuum gauge shows a good vacuum through the cooling system. Refer to the tool's operating manual for appropriate pressure readings.
  9. Close the vacuum generator / venturi ball valve.
    GC0087433Courtesy of CHRYSLER GROUP, LLC
  10. Disconnect the vacuum generator / venturi and airline (1) from the adaptor cone/vacuum gauge assembly (2).
  11. Wait approximately 20 seconds, if the pressure readings do not move, the system has no leaks. If the pressure readings move, a leak could be present in the system. Check for leaks and repeat the procedure.
    NOTE:

    Ensure there is a sufficient amount of coolant, mixed to the required strength/protection level available for use. For best results and to assist the refilling procedure, place the coolant container at the same height as the filler neck. Always draw more coolant than required. If the coolant level is too low, it will pull air into the cooling system which could result in air locks within the system.

  12. Place the tool's suction hose into the coolant's container.
    NOTE:

    Typical view of coolant refilling procedure. 

  13. Connect the tool's suction hose (1) to the adaptor cone/vacuum gauge assembly (2).
  14. Open the suction hose's ball valve to begin filling the cooling system.
    NOTE:

    If filling through a pressurized coolant bottle, stop filling when the proper level is reached.

  15. When the vacuum gauge reads zero, the system is filled.
  16. Close the suction hose's ball valve and remove the suction hose from the adaptor cone/vacuum gauge assembly.
  17. Remove the adaptor cone/vacuum gauge assembly from the filler neck.
  18. Install the cap on the filler neck.
  19. Start and run the engine with the heater control unit in the HEAT position.
  20. After the engine has reached normal operating temperature, shut the engine off and allow it to cool. When the engine is cooling down, coolant will be drawn into the radiator.
    NOTE:

    Only add coolant to the container when the engine is cold. Warm engine coolant level will be higher due to thermal expansion.

  21. Once the appropriate coolant level is achieved, install the cap on the filler neck.
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