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Home >> Chevrolet >> 2002 >> Silverado 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1501 (Automatic Transmission - 6T75 - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> On-Vehicle Repair Instructions >> Control Solenoid Valve and Transmission Control Module Assembly Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the control valve body cover. Refer to Control Valve Body Cover Replacement .
    2. Fig 1: Identifying Input Speed Sensor
    GM1803485Courtesy of GENERAL MOTORS CORP.
  2. Disconnect the input speed sensor electrical connector (1).
  3. Disconnect the output speed sensor electrical connector (2).
  4. Disconnect the shift position switch electrical connector (3).
    5. Fig 2: Identifying Control Valve Body Bolts
    GM1803488Courtesy of GENERAL MOTORS CORP.
  5. Remove the 4 control valve body bolts (1) M6 x 80.
  6. Position the control solenoid valve spring (8) to the side. Spring will be released with the removal of the control valve body assembly.
  7. Remove the 2 control valve body bolts (4) M6 x 65.
  8. Remove the control valve body bolt (3) M6 x 42.
  9. Remove the 3 control valve body bolts (2) M6 x 95.
  10. Remove the control valve body bolt (7) M6 x 55.
  11. Remove the control solenoid valve body and transmission control module (TCM) assembly (5).
    12. CAUTION: Use care when removing or installing the filter plate assembly. A broken or missing retaining tab may not adequately secure the filter plate to the control solenoid valve assembly, resulting in possible damage or contamination.
  12. Remove the control solenoid valve assembly filter plate (6).
    • Discard the filler plate. It is not reusable.
    • Inspect the pressure switch manifold seals for damage or contamination. Replace the control solenoid valve assembly as necessary.
    • Inspect the upper channel plate bolt holes for damage, peening or burnelling. Any damage around the bolt holes near the pressure control switch (PCS) feed holes could cause leakage around the PCS seals. Replace the upper channel plate as necessary.
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