Control & Shift Solenoids: Removal

NOTE: 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.

1. Remove the transmission oil pan and filter. See DRAINING & REFILLING  under LUBRICATION.
2. Remove the 1-2 accumulator if necessary. See ACCUMULATOR ASSEMBLY .
3. Disconnect the internal wiring harness electrical connectors from the following components:
   • Transmission fluid pressure switch (1). See Fig 1.
   • 1-2 shift control solenoid (2).
   • 2-3 shift control solenoid (3).
   • Pressure control solenoid (4).
   • TCC PWM solenoid (5).
   • 3-2 control solenoid (6).
4. Remove the pressure control solenoid retainer. Remove the pressure control solenoid. See Fig 2.
5. Remove the 1-2 and 2-3 shift solenoid retainers. Remove the 1-2 and 2-3 shift solenoids. See Fig 3.
6. Remove the 3-2 control solenoid retainer. Remove the 3-2 control solenoid. See Fig 3.

Fig 1: View Of Control & Shift Solenoid Locations

Courtesy of GENERAL MOTORS CORP.

Fig 2: Disassembled View Of Pressure Control Solenoid

Courtesy of GENERAL MOTORS CORP.

Fig 3: Disassembled View Of Shift Solenoids

Courtesy of GENERAL MOTORS CORP.