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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 471 (Automatic Transmission - Overhaul - ALLISON) >> Component Disassembly & Reassembly >> Control Valve Module >> Shift Valve Body Disassembly

Shift Valve Body Disassembly

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, 2003 Chevrolet Cab & Chassis Silverado, and 2002 GMC Sierra. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Ensure parts (springs, etc.) are not interchanged from their original locations to avoid transmission damage. If available, use Valve Tray Set (J-33163) or equivalent, to hold parts in correct order as removed. If valve tray set is not available, carefully tag each part as removed.
  1. Using Valve Spring Compressor (J-43773) or equivalent, compress "C" shift spring until retaining clip is loose and remove clip. Remove spring and "C" shift valve. See Figure.
  2. Repeat procedure at "E" & "D" shift spring and valve, and control main valve and spring. Remove solenoid screen. See Figure.
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