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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 918 (Automatic Transmission Service, Removal & Installation - 4L60-E) >> Repair Instructions >> Control and Shift Solenoids Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the transmission oil pan and filter. Refer to AUTOMATIC TRANSMISSION FLUID/FILTER REPLACEMENT .

    Important:  Do not remove the valve body for the following procedures. Removal of the 1-2 accumulator is necessary only if servicing the pressure control solenoid.

  2. Remove the 1-2 accumulator if necessary. Refer to ACCUMULATOR ASSEMBLY, SPACER PLATE, AND GASKETS .
  3. Disconnect the internal wiring harness electrical connectors from the following components:
    • Transmission fluid pressure switch (1)
    • 1-2 shift control solenoid (2)
    • 2-3 shift control solenoid (3)
    • Pressure control solenoid (4)
      Fig 1: Disconnecting Internal Wiring Harness Electrical Connectors From Components
      G01980026Courtesy of GENERAL MOTORS CORP.
    • TCC PWM solenoid (5)
    • 3-2 control solenoid (6)
  4. Remove the pressure control solenoid retainer.
  5. Remove the pressure control solenoid.
    Fig 2: Pressure Control Solenoid Retainer
    G01980027Courtesy of GENERAL MOTORS CORP.
  6. Remove the 1-2 and 2-3 shift solenoid retainers.
  7. Remove the 1-2 and 2-3 shift solenoids.
    Fig 3: 1-2 & 2-3 Shift Solenoid Retainers
    G01980028Courtesy of GENERAL MOTORS CORP.
  8. Remove the 3-2 control solenoid retainer.
  9. Remove the 3-2 control solenoid.
    Fig 4: 3-2 Control Solenoid Retainer
    G01980029Courtesy of GENERAL MOTORS CORP.