LEMON Manuals: Even more car manuals for everyone
Home >> Jeep >> 2024 >> Wagoneer Carbide, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 3 (3.0L - Engine (Service Information) (2 Of 5)) >> Cooling System >> Engine Cooling >> Standard Procedure >> Standard Procedure - Filling >> Coolant System Air Evacuation

Coolant System Air Evacuation

WARNING: This page is about a different car, the 2024 Jeep Grand Wagoneer L and 2024 Jeep Grand Wagoneer. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

To avoid damage to the cooling system, ensure that no component would be susceptible to damage when a vacuum is drawn on the system.

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.

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. Test the coolant concentration level and be sure the concentration level is correct. Refer to COOLANT CONCENTRATION TESTING  .
  2. Refer to the Mopar Essential Tools and Service Equipment (special tool #399-550000, Tool, UView Airlift™ Cooling System Refill) or equivalent and follow tool's operating manual for specific assembly steps.
    GC0210145Courtesy of CHRYSLER GROUP, LLC
    1 - Adapter Cone
    2 - Vacuum Gauge
  3. Choose an appropriate adapter cone that will fit the vehicle's radiator filler neck or reservoir tank.
  4. Attach the adapter cone to the vacuum gauge.
    GC0210143Courtesy of CHRYSLER GROUP, LLC
    1 - Vacuum Generator/Venturi
    2 - Airline Hose
    3 - Vacuum Generator/Venturi Valve
  5. Make sure the vacuum generator/venturi ball valve is closed and attach an airline hose (minimum shop air requirement of 80 psi (5.5 bar) to the vacuum generator/venturi.
  6. Position the adaptor cone/vacuum gauge assembly into the radiator filler neck or reservoir tank. Ensure that the adapter cone is sealed properly.
    GC0210144Courtesy of CHRYSLER GROUP, LLC
    1 - Gauge Assembly
    2 - Vacuum Generator/Venturi
  7. Connect the vacuum generator/venturi to the positioned adaptor cone/vacuum gauge assembly.
  8. Open the vacuum generator/venturi ball valve.
    NOTE:

    Do not bump or move the assembly as it may result in loss of vacuum. Some radiator overflow hoses may need to be clamped off to obtain vacuum.

  9. 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.
    NOTE:

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

  10. Close the vacuum generator/venturi ball valve.
    GC0210141Courtesy of CHRYSLER GROUP, LLC
    1 - Vacuum Generator/Venturi
    2 - Gauge Assembly
  11. Disconnect the vacuum generator/venturi and airline from the adaptor cone/vacuum gauge assembly.
  12. 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 and the cooling system should be checked for leaks and the procedure should be repeated.
  13. Place the tool's suction hose into the coolant's container.
    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 radiator 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 airlocks in the system.

  14. Connect the tool's suction hose to the adaptor cone/vacuum gauge assembly.
  15. Open the suction hose's ball valve to begin refilling the cooling system.
  16. When the vacuum gauge reads zero, the system is filled.
    NOTE:

    On some remote pressurized tanks, it is recommended to stop filling when the proper level is reached.

  17. Close the suction hose's ball valve and remove the suction hose from the adaptor cone/vacuum gauge assembly.
  18. Remove the adaptor cone/vacuum gauge assembly from the radiator filler neck or reservoir tank.
  19. With heater control unit in the HEAT position, operate engine with container cap in place.
  20. After engine has reached normal operating temperature, shut engine off and allow it to cool. When engine is cooling down, coolant will be drawn into the radiator from the pressure container.
  21. Add coolant to the recovery bottle/container as necessary. Only add coolant to the container when the engine is cold. Coolant level in a warm engine will be higher due to thermal expansion.  Add necessary coolant to raise container level to the COLD MINIMUM mark after each cool down period.
  22. Once the appropriate coolant level is achieved, attach the radiator cap or reservoir tank cap.
scientia non olet · About LEMON Manuals