Diesel Data: Automotive Repair

Shift Solenoid Valve and Shift Solenoid Wire Harness Replacement




Shift Solenoid Valve and Shift Solenoid Wire Harness Replacement

1. Raise the vehicle on a lift, or apply the parking brake, block the rear wheels, and raise the front of the vehicle. Make sure it is securely supported.

2. Remove the left front wheel.

3. Remove the splash shield.

4. Remove the drain plug (A), and drain the automatic transmission fluid (ATF).

5. Reinstall the drain plug with a new sealing washer (B).






6. Remove the shift solenoid valve cover (A), the dowel pins (B), and the gasket (C).






7. Disconnect the shift solenoid valve connectors.
- If replacing shift solenoid valve(s), go to step 8.

- If replacing the shift solenoid wire harness (A), remove the shift solenoid wire harness. Install a new O-ring (B) on the shift solenoid wire harness connector, and install it in the transmission housing, then go to step 13.





8. Remove the mounting bolts (F), then hold the shift solenoid valve body, and remove the shift solenoid valves. Do not hold the connector to remove the shift solenoid valve.

9. Install new O-rings (two O-rings per shift solenoid valve) (G) on the shift solenoid valve.
NOTE: A new shift solenoid valve comes with new O-rings. If you install a new shift solenoid valve, use the O-rings provided with it.

10. Install shift solenoid valve C (brown connector), shift solenoid valve D (black connector), and shift solenoid valve E (black connector) by holding the shift solenoid valve body; make sure the mounting bracket contacts the servo body.
NOTE: Do not hold the shift solenoid valve connector to install the shift solenoid valve. Be sure to hold the shift solenoid valve body.

11. Install shift solenoid valve B (brown connector) by holding the solenoid valve body; make sure the mounting bracket contacts the bracket of shift solenoid valve E.
NOTE: Do not install shift solenoid valve B before installing shift solenoid valve E. If shift solenoid valve B is installed before installing shift solenoid valve E, it may damage the hydraulic control system.

12. Install shift solenoid valve A (brown connector) by holding the shift solenoid valve body; make sure the mounting bracket contacts the bracket of shift solenoid valve D.
NOTE: Do not install shift solenoid valves A before installing shift solenoid valves D. If shift solenoid valve A is installed before installing shift solenoid valve D, it may damage the hydraulic control system.

13. Connect the shift solenoid valve connectors:
- RED wire connector to shift solenoid valve E.

- GRN wire connector to shift solenoid valve C.

- ORN wire connector to shift solenoid valve B.

- BLU wire connector to shift solenoid valve A.

- YEL, WHT, and WHT wire connector to shift solenoid valve D.

14. Install a new gasket, the dowel pins, and the shift solenoid valve cover.

15. Check the connector for rust, dirt, or oil, clean or repair as needed, then connect the connector securely.

16. Refill the transmission with ATF. ATF Replacement

17. Install the splash shield.

18. Install the left front wheel.