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Steering Gear Replacement (MHK, NV7)





Steering Gear Replacement (LHU, MHK, NV7)

Removal Procedure

Caution: With wheels of the vehicle facing straight ahead, secure the steering wheel utilizing steering column anti-rotation pin, steering column lock, or a strap to prevent rotation. Locking of the steering column will prevent damage and a possible malfunction of the SIR system. The steering wheel must be secured in position before disconnecting the following components:

* The steering column

* The intermediate shaft(s)

* The steering gear

After disconnecting these components, do not rotate the steering wheel or move the front tires and wheels. Failure to follow this procedure may cause the SIR coil assembly to become un-centered and cause possible damage to the SIR coil. If you think the SIR coil has become un-centered, refer to your specific SIR coil's centering procedure to re-center SIR Coil.

1. Lock the steering column in the straight-ahead position.

2. Disconnect the intermediate steering shaft from the steering gear and remove the front dash seal from the steering gear input shaft. Refer to Intermediate Steering Shaft Replacement Intermediate Steering Shaft Replacement.

3. Install the engine support fixture. Refer to Engine Support Fixture Engine Support Fixture.

4. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle Service and Repair.

5. Disconnect the steering linkage outer tie rods from the steering knuckles. Refer to Steering Linkage Outer Tie Rod Replacement Steering Linkage Outer Tie Rod Replacement.

6. Disconnect the stabilizer shaft links from the stabilizer shaft. Refer to Stabilizer Shaft Link Replacement Front Suspension.

7. Disconnect the lower control arms from the steering knuckles. Refer to Lower Control Arm Replacement (GNA) Lower Control Arm Replacement (GNA)Lower Control Arm Replacement (GNB) Lower Control Arm Replacement (GNB).

Note: The orientation of the steering gear electrical connector is important. Before disconnecting, note the location and orientation of the connector to aid in proper installation.

8. Disconnect the steering gear electrical connector.

9. Remove the steering gear heat shield. Refer to Steering Gear Heat Shield Replacement (NJ1) Steering Gear Heat Shield Replacement (NJ1)Steering Gear Heat Shield Replacement (NV7, NXC) Steering Gear Heat Shield Replacement (NV7, NXC).

10. Remove the through bolts for the front and rear transmission mounts. Refer to Transmission Front Mount Replacement Transmission Front Mount Replacement and Transmission Rear Mount Replacement Transmission Rear Mount Replacement.

11. Position adjustable jackstands underneath the left and right sides of the rear of the drivetrain and front suspension frame.

12. Lower the vehicle until the drivetrain and front suspension frame is resting lightly on the jackstands.

13. Remove the exhaust front pipe. Refer to Exhaust Front Pipe Replacement (LHU) Service and RepairExhaust Front Pipe Replacement (LDK or LHU) Service and Repair.

14. Loosen the drivetrain and front suspension frame front bolts. Refer to Drivetrain and Front Suspension Frame Replacement .

15. Raise the vehicle while the drivetrain and front suspension frame rests on the jackstands. Do not allow the gap between the body and rear of the frame to exceed a maximum of 50 mm (2 in).

16. Finish removing the stabilizer shaft. Refer to Stabilizer Shaft Replacement Front Suspension.




17. Remove the power steering gear inlet and outlet hose bolt (1) and hoses (2) from the steering gear (3). Discard the seals.




18. Remove the steering gear nuts (1), washers (2) and bolts (3) from the steering gear (4). Discard the nuts and bolts.

19. Remove the steering gear (4) from the left side of the vehicle.

20. If replacing the steering gear (1), transfer components as necessary.

21. If not replacing the steering gear (1), discard both of the power steering gear inlet and outlet hose seals and replace with NEW only. Refer to Power Steering Gear Inlet and Outlet Hose Seal Replacement (LHU, MDK, NXC) Power Steering Gear Inlet and Outlet Hose Seal Replacement (MDK, NXC)Power Steering Gear Inlet and Outlet Hose Seal Replacement (LHU, MHK, NV7) Power Steering Gear Inlet and Outlet Hose Seal Replacement (MHK, NV7)Power Steering Gear Inlet and Outlet Hose Seal Replacement (LHU, MR6, NV7, NXC) Power Steering Gear Inlet and Outlet Hose Seal Replacement (MR6, NV7, NXC).

Installation Procedure




1. Position the steering gear (4) on the drivetrain and front suspension frame through the left side of the vehicle.

Caution: Refer to Fastener Caution Fastener Caution.

Caution: This vehicle is equipped with torque-to-yield or single use fasteners. Install a NEW torque-to-yield or single use fastener when installing this component. Failure to replace the torque-to-yield or single use fastener could cause damage to the vehicle or component.

Note: Start all bolts by hand before tightening.

2. Install the NEW steering gear bolts (3), washers (2) and NEW nuts (1) and tighten the bolts (3) to 110 Nm (81 lb ft) + 150 degrees.




3. Install the power steering gear inlet and outlet hoses (2) in the steering gear (3).

4. Tighten the power steering gear inlet and outlet hose bolt (1) to 9 Nm (80 lb in).

5. Install the stabilizer shaft onto the drivetrain and front suspension frame. Refer to Stabilizer Shaft Replacement Front Suspension.

6. Lower the vehicle until the gap between the drivetrain and front suspension frame and body is approximately 12 mm (0.5 in).

7. Install the exhaust front pipe. Refer to Exhaust Front Pipe Replacement (LHU) Service and RepairExhaust Front Pipe Replacement (LDK or LHU) Service and Repair.

8. Tighten the drivetrain and front suspension frame front bolts. Refer to Drivetrain and Front Suspension Frame Replacement .

9. Remove the jackstands from underneath the vehicle.

10. Install the through bolts for the front and rear transmission mounts. Refer to Transmission Front Mount Replacement Transmission Front Mount Replacement and Transmission Rear Mount Replacement Transmission Rear Mount Replacement.

11. Install the steering gear heat shield. Refer to Steering Gear Heat Shield Replacement (NJ1) Steering Gear Heat Shield Replacement (NJ1)Steering Gear Heat Shield Replacement (NV7, NXC) Steering Gear Heat Shield Replacement (NV7, NXC).

Note: Ensure the steering gear electrical connector is orientated as noted before removal. Failure to install the connector in the correct position will result in the steering wheel being hard to turn at slow speeds.

12. Connect the steering gear electrical connector.

13. Connect the lower control arms to the steering knuckles. Refer to Lower Control Arm Replacement (GNA) Lower Control Arm Replacement (GNA)Lower Control Arm Replacement (GNB) Lower Control Arm Replacement (GNB).

14. Connect the stabilizer shaft links to the stabilizer shaft. Refer to Stabilizer Shaft Link Replacement Front Suspension.

15. Connect the steering linkage outer tie rods to the steering knuckles. Refer to Steering Linkage Outer Tie Rod Replacement Steering Linkage Outer Tie Rod Replacement.

16. Remove the engine support fixture. Refer to Engine Support Fixture Engine Support Fixture.

17. Install the front dash seal on the steering gear input shaft and connect the intermediate steering shaft to the steering gear. Refer to Intermediate Steering Shaft Replacement Intermediate Steering Shaft Replacement.

18. Fill and bleed the power steering system. Refer to Power Steering System Bleeding Service and Repair.

19. Measure and adjust the front toe. Refer to Wheel Alignment - Steering Wheel Angle and/or Front Toe Adjustment Wheel Alignment - Steering Wheel Angle and/or Front Toe Adjustment.

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