Shift Solenoid: Service and Repair
4L60-E/4L65-EControl and Shift Solenoids Replacement
Removal Procedure
1. Remove the transmission filter.
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.
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)
- torque converter clutch pulse width modulation (TCC PWM) solenoid (5)
- 3-2 control solenoid (6)
4. Remove the pressure control solenoid retainer.
5. Remove the pressure control solenoid.
6. Remove the 1-2 and 2-3 shift solenoid retainers.
7. Remove the 1-2 and 2-3 shift solenoids.
8. Remove the 3-2 control solenoid retainer.
9. Remove the 3-2 control solenoid.
Installation Procedure
1. Install the 3-2 control solenoid.
2. Install the 3-2 control solenoid retainer.
3. Install the 1-2 and 2-3 shift solenoids.
4. Install the 1-2 and 2-3 shift solenoid retainers.
5. Install the pressure control solenoid. Ensure that the electrical tabs are facing outboard.
Notice: Refer to Fastener Notice in Service Precautions.
Fastener Notice
6. Install the pressure control solenoid retainer and bolt.
- Tighten the bolt to 11 Nm (97 inch lbs.).
7. 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)
8. Install the 1-2 accumulator, if necessary.
9. Install the transmission filter.