Avalanche 4WD V8-5.3L (2011)
2. Support the rear axle.
3. Disconnect the electronic suspension control connector (3), if equipped.
4. If the vehicle is equipped with air leveling, perform the following:
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Turn the ignition On, with the engine off.
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Install a scan tool.
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With the scan tool, exhaust the air from the system for at least 60 seconds.
Note: There will be a minimal amount still in the air in the air lines.
5. Disconnect the air line, if equipped (4).
6. Remove the upper shock absorber nut (1) and the bolt (2).
7. Remove the lower shock absorber nut (6) and the bolt (7).
8. Remove the shock absorber (5).
Installation Procedure
