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Home >> Cadillac >> 2007 >> STS Base, 4.6 A, AWD >> Repair and Diagnosis >> Suspension >> Electronic Suspension >> Suspension Control System - Suspension Leveling >> Diagnostic Information and Procedures >> Automatic Level Control System Leak Test

Automatic Level Control System Leak Test

Automatic Level Control System Leak Test

Step Action Yes No
1 Did you review the ALC 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  on the side opposite the toggle valve.
  3. Close the toggle valve.
  4. Apply service air pressure to J 22124-B  service valve until the gage reads 550 kPa (80 psi).
  5. Monitor the J 22124-B  gage pressure for 1 minute.
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 in Rear Suspension.
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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