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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1829 (Automatic Transmission - 5AT - Introduction (2 Of 2)) >> Repair Instructions >> Repair Instructions - Off Vehicle >> Servo Valve Body Overhaul >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Servo Valve Body & Components Removed
    GM1347066Courtesy of GENERAL MOTORS CORP.
    CAUTION: Valve springs can be tightly compressed. Use care when removing retainers and plugs. Personal injury could result.
    NOTE: Do not use a magnet in order to remove the control valve body ball check valves. This may magnetize the control valve body ball check valves, causing metal particles to stick to them.
  1. Remove the following steel check balls from the servo valve body (306):
    • 1st clutch accumulator check valve (311)
    • 1st clutch check valve (318)
    • 2nd clutch check valve (319)
  2. Remove the 1st accumulator choke (326).
  3. Remove the valve bore plug retainer clip (310) from the servo valve body, then remove the following components:
    • The valve bore plug (308)
    • The clutch pressure control (CPC) valve (308)
    • The CPC valve return spring (307)
  4. Fig 2: Servo Valve Bore & Components Removed
    GM1358321Courtesy of GENERAL MOTORS CORP.
    CAUTION: Valve springs can be tightly compressed. Use care when removing retainers and plugs. Personal injury could result.
  5. Remove the following:
    • Valve bore plug retainer clip (310), bore plug (315), reverse CPC valve (314), and Reverse CPC valve return spring (313).
    • Valve bore plug retainer clip (310), bore plug (309), return spring (317), and servo control valve (316).
    • Valve bore plug retainer clip (310), bore plug (309), return spring (320), and shift valve C (321).
    • Valve bore plug retainer clip (310), bore plug (309), CPC valve A (323), and return spring (324).
    • Valve bore retainer (302), return spring (303), kick-down valve (304), and kick-down short valve (305).