LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Cadillac >> 2019 >> XTS Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 44 (Suspension Control System - Suspension Leveling) >> Repair Instructions >> Rear Air Spring Compressor Replacement >> Installation Procedure
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Installation Procedure

WARNING: This page is about a different car, the 2018 Cadillac XTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. GM2846992Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Reuse the air tube assembly that is already installed in the vehicle.

    Install the rear air spring compressor (2) stud into the frame rail and slide the rear air spring compressor assembly (2) forward.

  2. CAUTION:

    Refer to Fastener Caution .

  3. Install the rear air spring compressor nuts (1) and (3), do NOT fully tighten.
  4. GM2846440Courtesy of GENERAL MOTORS COMPANY

    Install the air suspension compressor bolt (1) and tighten to 22 N.m (16 lb ft).

  5. Tighten the rear air spring compressor nuts to 22 N.m (16 lb ft).
  6. NOTE:

    After reinstalling exhaust remove transmission jack from under vehicle.

  7. Raise the rear exhaust back into position and reattach to front exhaust. Exhaust Muffler Replacement (FWD)Exhaust Muffler Replacement (AWD)
  8. GM2846759Courtesy of GENERAL MOTORS COMPANY

    Install the air suspension compressor filter tube (1).

  9. GM2760412Courtesy of GENERAL MOTORS COMPANY

    Connect the air suspension compressor electrical connector (1).

  10. GM2760413Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Do NOT exceed the torque value on the air supply fitting, over tightening may cause the plastic threads in the air compressor or the air spring to become stripped, permanently damaging the air spring compressor or air spring.

    Install the air suspension compressor air line fittings (1) and tighten to 2 N.m (18 lb in).

  11. CAUTION:

    Do NOT pressurize the air springs/shocks under load or damage to the air spring/shocks will occur. Always pressurize the system with the wheels of the vehicle off the ground.

  12. Lower the vehicle, but DO NOT allow the 4 tire assemblies to touch the ground.
  13. Pressurize the air suspension system. Air Suspension System Depressurization and Pressurization 
  14. Continue to lower the vehicle.
  15. Start the vehicle and run for approximately 1 minute to ensure the air spring is completely pressurized and functioning properly.
  16. Raise the vehicle and with a squirt bottle filled with a soap and water solution check the air line fittings for leaks.
  17. Lower the vehicle.