Torque Converter Clutch Solenoid: Service and Repair
Torque Converter Clutch Pulse Width Modulation (TCC PWM) Solenoid, TCC Solenoid, and Wiring HarnessTools Required
^ J28458 Seal Protector Retainer Installer
Removal Procedure
1. Raise and support the vehicle.
2. Remove the transmission oil pan and the filter.
3. Disconnect the transmission harness 20-way connector from the transmission internal harness pass-through connector.
Depress both tabs on the connector and pull straight up; do not pry the connector.
Important: Removal of the valve body is not necessary for the following procedure.
4. Remove the 1-2 accumulator assembly. Do not remove the spacer plate.
5. 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)
^ TCC PWM solenoid (5)
^ 3-2 control solenoid (6)
6. Remove the TCC PWM solenoid retainer.
7. Remove the TCC PWM solenoid in order to access one of the TCC solenoid retaining bolts.
8. Remove the pressure control solenoid retainer.
9. Remove the pressure control solenoid.
10. Remove the TCC solenoid retaining bolts and the valve body bolts which retain the internal wiring harness.
11. Using J28458, release the pass-through electrical connector from the transmission case.
11.1. Use the small end of the J28458 over the top of the connector.
11.2. Twist in order to release the four tabs retaining the connector.
11.3. Pull the harness connector down through the transmission case.
12. Remove the TCC solenoid (with O-ring seal) and wiring harness assembly from the transmission case.
13. Inspect the TCC solenoid and wiring harness assembly for the following defects:
^ Damage
^ Cracked connectors
^ Exposed wires
^ Loose pins
Installation Procedure
1. Install the wiring harness and TCC solenoid assembly with a new O-ring seal to the transmission.
2. Install the pass-through electrical connector to the transmission case.
Notice: Refer to Fastener Notice in Service Precautions.
3. Install the valve body bolts which retain the internal wiring harness and install the TCC solenoid retaining bolts.
^ Tighten the control valve body retaining bolts to 11 Nm (97 inch lbs.).
^ Tighten the TCC solenoid retaining bolts to 11 Nm (97 inch lbs.).
4. Install the pressure control solenoid.
Ensure that the electrical tabs are facing outboard.
5. Install the pressure control solenoid retainer and retaining bolt.
Tighten the pressure control solenoid retaining bolt to 11 Nm (97 inch lbs.).
6. Install the TCC PWM solenoid to the control valve body.
7. Install the TCC PWM solenoid retainer.
8. Connect the internal wiring harness electrical connectors to the following components:
^ Transmission fluid pressure switch (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)
9. Install the 1-2 accumulator.
10. Connect the transmission harness 20-way connector to the transmission pass-through connector.
Align the arrows on each half of the connector and insert straight down.
11. Install the transmission oil pan and filter.
12. Lower the vehicle.
13. Fill the transmission to the proper level with DEXRON III transmission fluid.