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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1363 (Hydraulic Brake System) >> Repair Instructions >> Vacuum Brake Booster Replacement >> Adjustment Procedure

Adjustment Procedure

WARNING: This page is about a different car, the 2004 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Master Cylinder And Cylinder Piston
    GM172785Courtesy of GENERAL MOTORS CORP.
  1. Place the J 39567  on the master cylinder (1). See Special Tools and Equipment .
  2. Push the J 39567  pin down until it touches the master cylinder piston (2). See Special Tools and Equipment .
  3. Remove the J 39567  from the master cylinder. See Special Tools and Equipment .
    4. Fig 2: Cylinder Piston Components
    GM172794Courtesy of GENERAL MOTORS CORP.
  4. Turn the J 39567  upside down. See Special Tools and Equipment .
  5. Set the J 39567  on the booster (1). See Special Tools and Equipment .

    Specification:  The clearance (2) between the booster piston rod (3) and the J 39567  should be 0 mm (0 in). See Special Tools and Equipment .

    6. Fig 3: Booster Piston Rod
    GM172797Courtesy of GENERAL MOTORS CORP.
  6. If the measurement does not equal the specification, use the J 37767  in order to hold the booster piston rod (1). See Special Tools and Equipment .
  7. Turn the adjusting screw of the piston rod in order to adjust the clearance.
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