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Automatic Level Control System Leak Test

WARNING: This page is about a different car, the 2007 Buick Lucerne. However, it is still accessible from the selected car via links, so may be relevant.
Automatic Level Control System Leak Test

Step Action Yes No
1 Did you review the Automatic Level Control System Description and Operation and perform the necessary inspections? Go to Step 2  Go to Symptoms - Automatic Level Control 
2
  1. Disconnect the air tube from the air dryer.
  2. Connect the air tube to the J 22124-B  Pressure Gage on the side opposite the toggle valve. See Special Tools .
  3. Close the toggle valve.
  4. Apply service air pressure to J 22124-B  service valve until the gage reads 550 kPa (80 psi). See Special Tools .
  5. Monitor the J 22124-B  gage pressure for 1 minute. See Special Tools .
Does the system maintain pressure?		 System OK Go to Step 3 
3 Inspect the shock absorber air sleeves for air leakage using soapy water.
Did you find an air leak?		 Go to Step 5  Go to Step 4 
4 Inspect the air tubes and connections for air leakage using soapy water.
Did you find and correct the condition?		 Go to Step 6  -
5 Replace the shock absorbers. Refer to Shock Absorber Replacement .
Did you complete the replacement?		 Go to Step 6  -
6 Operate the system in order to verify the repair.
Did you correct the condition?		 System OK Go to Step 2 
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