Installation Procedure

2025 Chevrolet Suburban LS, RWDSECTION Installation Procedure
  1. GM5611961Courtesy of GENERAL MOTORS COMPANY

    Automatic Level Control Air Supply Reservoir (2) - Install

  2. CAUTION:

    Refer to Fastener Caution .

  3. Install the 3 automatic level control air compressor bolts (1) and tighten. Fastener Specifications 
  4. GM5611960Courtesy of GENERAL MOTORS COMPANY

    Install the chassis wire harness clip (1) to the automatic level control air supply reservoir.

  5. GM5611959Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Ensure that you push the line into the fitting as far as it will go. At least part of the white marking MUST be into the top of the fitting. Remember, when inserting an air line into an air spring fitting, just because the white marks are in the fitting, does NOT always mean that the line is fully inserted and pushing the one way check valve open.

    Install the air line nut (1) to the automatic level control air supply reservoir and tighten. Fastener Specifications 

  6. GM5612578Courtesy of GENERAL MOTORS COMPANY

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

  7. Install CH-52667  Air Spring Inflator to the automatic level control air supply reservoir air valve (2) and set the regulator on the nitrogen tank to 16 Bar (232 PSI).
  8. Using CH-52667  Air Spring Inflator, open the valve on the pressure gage to fill the automatic level control air supply reservoir.
  9. Using CH-52667  Air Spring Inflator and the shop nitrogen tank, fill the automatic level control air supply reservoir to 16 Bar (232 PSI).
  10. Close the pressure gauge valve and remove CH-52667  Air Spring Inflator from the automatic level control air supply reservoir.
  11. Install the automatic level control air supply reservoir air valve cap (1) and tighten. Fastener Specifications 
  12. Remove the support and lower the vehicle.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.