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Steering Gearbox Installation

WARNING: This page is about a different car, the 2009 Acura MDX, 2008 Acura MDX, and 2007 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
  1. Before installing the steering gearbox, make sure that no power steering fluid is on the mating surface of the steering gearbox and front subframe. To prevent the gearbox mounting bolts from loosening after the installation, remove any power steering fluid from the mount cushions and bolt holes.
  2. Apply vinyl tape to the splines on the pinion shaft (A).
    Fig 1: Identifying Vinyl Tape To Splines On Pinion Shaft
    G05486502Courtesy of AMERICAN HONDA MOTOR CO., INC.
  3. Install the pinion shaft grommet Bon the top of the valve housing.
  4. Slide the steering gearbox (A) between the front subframe and body from the driver's side.
    Fig 2: Identifying Steering Gearbox Between Front Subframe And Body From Driver'S Side
    G05486503Courtesy of AMERICAN HONDA MOTOR CO., INC.
  5. Carefully move the steering gearbox (A) toward the passenger's side until the pinion shaft clears the wheelwell opening on the body.
    Fig 3: Identifying Steering Gearbox
    G05486504Courtesy of AMERICAN HONDA MOTOR CO., INC.
  6. Continue moving the gearbox toward the passenger's side until the steering gearbox is in position.
  7. Install the gearbox stiffener bracket (A) on the left side of the front subframe, and tighten the bolts and nut to the specified torque.
    Fig 4: Gearbox Stiffener Bracket On Left Side Of Front Subframe With Torque Specifications
    G05486505Courtesy of AMERICAN HONDA MOTOR CO., INC.
  8. Loosely install the new mounting bolts (A) on the left side of the steering gearbox.
    Fig 5: Mounting Bolts On Left Side Of Steering Gearbox With Torque Specification
    G05486506Courtesy of AMERICAN HONDA MOTOR CO., INC.
  9. Position the cutout (A) on the mounting cushion (B) as shown, and install it on the right side of the steering gearbox.
    Fig 6: Cutout On Mounting Cushion With Torque Specification
    G05486507Courtesy of AMERICAN HONDA MOTOR CO., INC.
  10. Install the gearbox mounting bracket (C) over the mounting cushion, and loosely install the mounting bolts.
  11. Tighten the mounting bolts on both sides of the steering gearbox to the specified torque alternately in two or more steps.
  12. Carefully raise the front subframe with the subframe adapter and the transmission jack or the powertrain lift until the subframe is it position.
  13. Align all reference marks (A) on the front subframe (B) with the body.
    Fig 7: Identifying Reference Marks On Front Subframe With Body
    G05486508Courtesy of AMERICAN HONDA MOTOR CO., INC.
  14. Install the front subframe front brackets (A) with mounting bolts (B) and the new special bolts (C), and tighten to the specified torque.
    Fig 8: Front Subframe Front Brackets With Mounting Bolts And Special Bolts With Torque Specifications
    G05486509Courtesy of AMERICAN HONDA MOTOR CO., INC.
  15. Install the front subframe rear brackets (A) with mounting bolts (B) and the new special bolts (C), and tighten to the specified torque.
    Fig 9: Front Subframe Rear Brackets With Mounting Bolts And Special Bolts With Torque Specifications
    G05486510Courtesy of AMERICAN HONDA MOTOR CO., INC.
  16. Lower the transmission jack supporting the front subframe.
  17. Install the ground cable bolt (A) to the transmission.
    Fig 10: Ground Cable Bolt To Transmission With Torque Specification
    G05486511Courtesy of AMERICAN HONDA MOTOR CO., INC.
  18. Install the base bracket (A) with new mounting bolts (B) and mounting bolts (C), and tighten to the specified torque.
    Fig 11: Base Bracket With Mounting Bolts With Torque Specifications
    G05486512Courtesy of AMERICAN HONDA MOTOR CO., INC.
  19. Install the rear engine mount (A) with new mounting bolts (B), and tighten to the specified torque.
    Fig 12: Rear Engine Mount With Mounting Bolts With Torque Specifications
    G05486513Courtesy of AMERICAN HONDA MOTOR CO., INC.
  20. Install the rear mount stop (A) with new mounting nuts (B), and tighten to the specified torque.
    Fig 13: Rear Mount Stop With Mounting Nuts With Torque Specification
    G05486514Courtesy of AMERICAN HONDA MOTOR CO., INC.
  21. Install the inlet line clamp bolts (A), and tighten to the specified torque.
    Fig 14: Inlet Line Clamp Bolts With Torque Specification
    G05486515Courtesy of AMERICAN HONDA MOTOR CO., INC.
  22. Install exhaust pipe A (see EXHAUST PIPE AND MUFFLER REPLACEMENT ).
  23. Install the propeller shaft and propeller shaft protectors (see PROPELLER SHAFT INSTALLATION ).
  24. Install the front subframe stiffener plate (A) with new mounting bolts (B), and tighten to the specified torque.
    Fig 15: Front Subframe Stiffener Plate With Mounting Bolts With Torque Specification
    G05486516Courtesy of AMERICAN HONDA MOTOR CO., INC.
  25. Install the front undercover (see FRONT UNDERCOVER REPLACEMENT ) and the front splash shield (see SPLASH SHIELD REPLACEMENT ).
  26. Connect the stabilizer links (A) to the lower arms (see STABILIZER LINK REMOVAL/INSTALLATION ).
    Fig 16: Stabilizer Links To Lower Arms With Torque Specification
    G05486517Courtesy of AMERICAN HONDA MOTOR CO., INC.
  27. Connect the lower arm ball joints to the knuckles (see LOWER ARM REMOVAL/INSTALLATION ).
  28. Wipe off any grease contamination from the ball joint tapered section and threads. Reconnect the tie-rod ball joints (A) to the knuckles. Install the 12 mm nuts (B) and tighten it to the specified torque.
    Fig 17: Tie-Rod Ball Joints And Nut With Torque Specification
    G05486518Courtesy of AMERICAN HONDA MOTOR CO., INC.
  29. Install the new cotter pin (C) and bend it as shown.
  30. Remove the engine support hanger, the hanger balance bar, and the hanger adapter set.
  31. Connect the return hose (A) securely, and tighten the adjustable hose clamp (B) (see POWER STEERING HOSE, LINE, AND PRESSURE SWITCH REPLACEMENT  ).
    Fig 18: Return Hose, Hose Clamp And Inlet Line With Flare Nut With Torque Specification
    G05486519Courtesy of AMERICAN HONDA MOTOR CO., INC.
  32. Connect the inlet line (C), and tighten the 16 mm flare nut (D) to the specified torque.
  33. Install the front wheel, then set the wheels in the straight ahead position.
    NOTE: Before installing the wheel, clean the mating surfaces of the brake disc and inside of the wheel.
  34. Lower the vehicle.
  35. Center the steering rack within its stroke.
  36. Insert the upper end of the steering joint onto the steering shaft (A) (line up the bolt hole (B) with the flat portion (C) on the shaft), and loosely install the upper joint bolt (D).
    Fig 19: Identifying Upper Of Steering Joint Onto Steering Shaft
    G05486520Courtesy of AMERICAN HONDA MOTOR CO., INC.
  37. Slip the lower end of the steering joint onto the pinion shaft taking care to align the gap (E) within the angle.
  38. Align the bolt hole (A) on the steering joint with the groove (B) around the pinion shaft then loosely install the joint bolt (C).
    Fig 20: Bolt Hole On Steering Joint With Groove With Torque Specifications
    G05486521Courtesy of AMERICAN HONDA MOTOR CO., INC.
  39. Pull on the steering joint to make sure that the steering joint is fully seated, then tighten the lower joint bolt to the specified torque.
  40. Tighten the upper joint bolt (D) to the specified torque.
  41. Install the steering joint cover (A).
    Fig 21: Identifying Steering Joint Cover
    G05486522Courtesy of AMERICAN HONDA MOTOR CO., INC.
  42. Install the steering wheel (see STEERING WHEEL INSTALLATION  ).
  43. Do the battery terminal reconnection procedure(see BATTERY TERMINAL DISCONNECTION AND RECONNECTION ), and do these tasks:
    • Turn the ignition switch ON (II); the SRS indicator should come on for about 6 seconds and then go off.
    • Make sure the horn and turn signal switches work properly.
    • Make sure the steering wheel switches work properly.
  44. Fill the system with power steering fluid, and bleed air from the system (see FLUID REPLACEMENT  ).
  45. After installation, do these checks:
    • Start the engine, allow it to idle, and turn the steering wheel from lock-to-lock several times to warm up the fluid. Check the gearbox for leaks (see FLUID LEAKAGE INSPECTION  ).
    • Check the steering wheel spoke angle. If steering spoke angles to the right and left are not equal (steering wheel and rack are not centered), correct the engagement of the joint/pinion shaft serrations, then adjust the front toe by turning the tie-rod ends, if necessary.
    • Set the steering column to the center tilt position, then do the front toe inspection (see WHEEL ALIGNMENT ).
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