TCC Solenoid, TCC PWM Solenoid & Wiring Harness: Removal
WARNING: This page is about a different car, the 2002 Pontiac Firebird and 2002 Chevrolet Camaro. However, it is still accessible from the selected car via links, so may be relevant.
- Raise and support the vehicle. Remove the transmission oil pan and the filter. See DRAINING & REFILLING under LUBRICATION. Disconnect the transmission harness 20-way connector from the transmission internal harness pass-through connector. See Fig 1 . Depress both tabs on the connector and pull straight up; do not pry the connector.
- Remove the 1-2 accumulator assembly. Do not remove the spacer plate. See ACCUMULATOR ASSEMBLY, SPACER PLATE & GASKETS . Disconnect the internal wiring harness electrical connectors from the following components: transmission fluid pressure switch, 1-2 shift control solenoid, 2-3 shift control solenoid, pressure control solenoid, TCC PWM solenoid and 3-2 control solenoid. See Figure .
- Remove the TCC PWM solenoid retainer. Remove the TCC PWM solenoid in order to access one of the TCC solenoid retaining bolts. See Figure . Remove the pressure control solenoid retainer. Remove the pressure control solenoid. See Figure .
- Remove the TCC solenoid retaining bolts and the valve body bolts which retain the internal wiring harness. See Fig 2 . Using Seal Protector Retainer Installer (J-28458), release the pass-through electrical connector from the transmission case. Use the small end of the tool over the top of the connector. Twist in order to release the 4 tabs retaining the connector. Pull the harness connector down through the transmission case. Remove the TCC solenoid (with O-ring seal) and wiring harness assembly from the transmission case. See Fig 3 and Figure .
- Inspect the TCC solenoid and wiring harness assembly for damage, cracked connectors, exposed wires and loose pins.
NOTE:
Removal of the valve body is not necessary for the following procedure.