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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1007 (Automatic Transmission - 4L80-E/4L85-E (Introduction, Service & Replacement)) >> Repair Instructions >> Torque Converter Clutch (TCC) Valve and Spring Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the transmission filter. Refer to Automatic Transmission Fluid/Filter Replacement .
    CAUTION: Valve springs can be tightly compressed. Use care when removing retainers and plugs. Personal injury could result.
  2. Remove the valve bore plug retainer ring (1).
    Fig 1: View Of Valve Bore Plug Retainer Ring & Reverse Boost Valve Bushing Retainer Ring
    GM102558Courtesy of GENERAL MOTORS CORP.
    3. Fig 2: TCC Valve Assembly
    GM43320Courtesy of GENERAL MOTORS CORP.
  3. Remove the following parts:
    • The valve bore plug
    • The TCC valve
    • The TCC valve spring
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