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Home >> GMC >> 2022 >> Hummer EV >> Repair and Diagnosis >> Suspension >> Suspension Control Systems >> Suspension Controls System >> Repair Instructions >> Automatic Level Control Air Supply Reservoir Replacement >> Installation Procedure

Installation Procedure

  1. GM5896836

    Automatic Level Control Air Supply Reservoir (1) - Install

  2. CAUTION:

    Refer to Fastener Caution .

  3. Automatic Level Control Air Supply Reservoir Nut (2) - Install and tighten [4x] - Fastener Specifications 
  4. GM5896832

    Install the automatic level control air compressor tube fitting (1) to the automatic level control air supply reservoir and tighten. Fastener Specifications 

  5. GM5896840

    Remove the automatic level control air supply reservoir coupling cap (1).

  6. Install CH-52667  Air Spring Inflator to the automatic level control air supply reservoir coupling (2) and set the regulator on the nitrogen tank to 16 Bar (232 PSI).
  7. Using CH-52667  Air Spring Inflator, open the valve on the pressure gage to fill the automatic level control air supply reservoir.
  8. Using CH-52667  Air Spring Inflator and the shop nitrogen tank, fill the automatic level control air supply reservoir to 16 Bar (232 PSI).
  9. Close the pressure gauge valve and remove CH-52667  Air Spring Inflator from the automatic level control air supply reservoir coupling.
  10. Install the automatic level control air supply reservoir coupling cap (1) and tighten. Fastener Specifications 
  11. GM5834765

    Underbody Rear Air Rear Deflector (1) - Install

  12. GM6051509
    CAUTION:

    Refer to Fastener Caution .

    Underbody Rear Air Deflector Bolt (1) - Install and tighten [6x] - Fastener Specifications

  13. GM6051510

    Underbody Rear Air Deflector Bolt (1) - Install and tighten [17x] - Fastener Specifications

  14. GM6051511

    Underbody Rear Air Deflector Retainer (1) - Install [3x]

  15. Remove the support and lower the vehicle.