Lincoln Aviator: Vehicle Dynamic Suspension / General Procedures - Air Suspension System Depressurize and Pressurize

Pressure release

1. Assemble the following items:
   1. Shut off valve
      
   2. Pressure regulator with gauge
      
   3. R-134a low side refrigerant line fitting
      
   4. Air line male quick connect fitting
      

1. Position the vehicle on a hoist.
   Refer to: Jacking and Lifting (100-02 Jacking and Lifting, Description and Operation).
   

1. Typical air suspension service port.
   

1. Typical hookup for depressurization.
   

1. Typical hookup for pressurization.
   

1. NOTICE: Shop air source must not contain lubrication. Air must be free of moisture and lubrication or air suspension system damage will occur.

   NOTE: Monitor the pressure gauge during the filling process as adjustments will be required to maintain the pressure.

   Connect a scan tool and follow the FDRS Pressurization and Depressurization procedure.