GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2003 🢒 DeVille 🢒 Suspension 🢒 Automatic Level Control 🢒 Automatic Level Control Air Dryer Replacement

Removal Procedure
  1. Remove the air compressor assembly with the bracket from the vehicle. Refer to Air Compressor Replacement .

    2. Object Number: 227987 Size: SH
  2. Rotate the spring clip 90 degrees out of the slot.
  3. Remove the air dryer from the air compressor assembly.
  4. Remove the seal from the air compressor.

Installation Procedure

    Important: 

       • Before driving the vehicle, turn the ignition on and wait approximately 45 seconds. This will permit the ELC system to execute the ARC, ensuring that the air adjustable shock absorbers are filled with residual pressure.
       • Lubricate the seal with silicone lubricant.
       • The spring clip must not be in the slots of the air compressor.

  1. Install a new seal onto the air dryer.

    2. Object Number: 227987 Size: SH
  2. Install the air dryer with the seal in the air compressor.
  3. Rotate the spring clip 90 degrees to lock the air dryer in place.
  4. Install the air compressor assembly with the bracket onto the vehicle. Refer to Air Compressor Replacement .