GM Service Manual Online
For 1990-2009 cars only

Steering Gear Replacement 3.8L VIN G

Removal Procedure

  1. Place drain pan(s) under vehicle under steering gear and pump.
  2. Raise and suitably support vehicle. Refer to Lifting and Jacking the Vehicle

  3. Object Number: 354423  Size: SH
  4. Remove power steering gear inlet (3) and outlet (2) hoses from steering gear (1).
  5. Lower vehicle.
  6. Remove the serpentine belt.
  7. Remove the power steering pump pulley. Refer to Power Steering Pump Pulley Replacement .

  8. Object Number: 354420  Size: SH
  9. Remove inlet hose fitting (3) from pump (1) (L36 shown, LS1 similar).

  10. Object Number: 354416  Size: MH
  11. Remove outlet hose from reservoir ( LS1 with cooler shown, remote-mount reservoir on L36).
  12. Important: If vehicle is equipped with a power steering cooler (LS1 only), outlet hose and cooler hose (if replacing) must be removed from the power steering cooler as the cooler is installed in the outlet hose (return back to reservoir).

Installation Procedure


    Object Number: 354416  Size: MH
  1. Install outlet hose to reservoir ( LS1 with cooler shown, remote-mount reservoir on L36). (Pump mounted on LS1, body mounted on L36)
  2. Important: Inlet and outlet hoses must be oriented so as adequate clearance is maintained between both hoses and surrounding components to prevent chafing. Use minimum clearance of 12 mm (.47 inch). The outlet hose must not be twisted during installation. Do not bend or distort inlet and outlet hoses to make installation easier. Failure to follow these procedures could result in component damage.


    Object Number: 354420  Size: SH
  3. Install inlet hose fitting (3) to pump (1) (L36 shown, LS1 similar).
  4. Install the power steering pump pulley. Refer to Power Steering Pump Pulley Replacement .
  5. Install the serpentine belt.
  6. Raise and suitably support vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

  7. Object Number: 354423  Size: SH
  8. Install inlet and outlet hoses (2&3) to steering gear (1).
  9. Tighten
    Inlet hose (3) to 28N·m (21 lb. ft.).

    Outlet hose (2) to 28N·m (21 lb. ft.).

  10. Lower vehicle.
  11. Remove drain pan.
  12. Refill and bleed power steering system. Refer to Power Steering System Bleeding .

Steering Gear Replacement 5.7L VIN K

Removal Procedure

  1. Remove the air intake resonator.
  2. Remove the serpentine belt. Refer to Drive Belt Replacement in Engine Mechanical - 5.7L.
  3. Support the engine with a hydraulic jack.
  4. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  5. Remove the tires and wheels. Refer to Wheel Removal in Tires and Wheels.

  6. Object Number: 290561  Size: MH
  7. Place a drain pan under the steering gear (5).
  8. Disconnect the steering gear outer tie rods.
  9. Remove the generator. Refer to Generator Replacement in Engine Electrical.
  10. Remove the left-side engine mount through bolt.
  11. Lower the vehicle.
  12. Raise the engine with the hydraulic jack.
  13. Disconnect the following hoses from the steering gear (5):
  14. • The power steering gear inlet hose
    • The power steering gear outlet hose
  15. Remove the steering gear flexible coupling from the steering gear (5). Refer to Steering Shaft Coupling Replacement in Steering Wheel and Column.
  16. Remove the nuts (4) and bolts/screws (1).
  17. Remove the steering gear (5).

Installation Procedure


    Object Number: 290561  Size: MH
  1. Position the steering gear (5) to the crossmember (2).
  2. Adjust the steering gear (5).
  3. Ensure that the steering aligns as straight as possible with the steering gear coupling shaft.

  4. Hand start the bolts/screws (1) and nuts (4).
  5. Position the back-up wrench to the nuts (4).
  6. Tighten
    Tighten the bolt/screws to 85 N·m (63 lb ft).

  7. Install the steering gear flexible coupling to the steering gear. Refer to Steering Shaft Coupling Replacement in Steering Wheel and Column.
  8. Tighten
    Tighten the bolts/screws to 47 N·m (35 lb ft).

  9. Connect the following hoses to the steering gear (5).
  10. • The power steering gear inlet hose
    • The power steering gear outlet hose
  11. Lower the vehicle. Allow the vehicle to stay slightly above the ground while the tires and wheels are not installed.
  12. Lower the engine with the hydraulic jack.
  13. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .
  14. Install the left side engine mount through-bolt.
  15. Install the generator. Refer to Generator Replacement in Engine Electrical.
  16. Connect the steering gear outer tie rods to the steering knuckles.
  17. Install the tire and wheels. Refer to Wheel Installation in Tires and Wheels.
  18. Lower the vehicle.
  19. Remove the hydraulic jack supporting the engine.
  20. Install the serpentine belt. Refer to Drive Belt Replacement in Engine Mechanical -- 5.7L.
  21. Install the air intake resonator.
  22. Refill and bleed the power steering system. Refer to Power Steering System Bleeding in Power Steering System.