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Home >> Cadillac >> 2009 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 305 (Suspension Control System - Suspension Leveling) >> Diagnostic Information and Procedures >> Automatic Level Control System Leak Test >> Tools Required
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Tools Required

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J 22124-B  Pressure Gauge (0-300 psi)

  1. Disconnect the air tube from the air dryer.
  2. Attach the air tube to the J 22124-B  pressure gauge on the side opposite the toggle valve.
  3. Close the toggle valve.
  4. Apply service air pressure to the service valve and pressurize until the J 22124-B  pressure gauge reads 550 kPa (80 psi).
  5. Verify that the system maintains pressure for at least 1 minute.
    • If the system does not maintain the specified pressure for the specified amount of time, check the shock absorber air sleeves, air tubes, and all connections for air leaks using a soapy water solution. Repair or replace any leaking components.
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