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Lower Arm Removal/Installation: Removal/Installation

WARNING: This page is about a different car, the 2013 Acura MDX, 2012 Acura MDX, 2011 Acura MDX, and 2010 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
  1. Raise and support the vehicle (see LIFT AND SUPPORT POINTS ).
  2. Remove the front wheel.
  3. With active damper system/With headlight leveling system left side: Remove the suspension stroke sensor (A) from the lower arm (B).
    NOTE: Use the new nut during reassembly.
    Fig 1: Suspension Stroke Sensor, Lower Arm And Harness Clip With Torque Specifications
    G08054953Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. Remove the lock pin (A) from the lower arm ball joint, then remove the castle nut (B).
    NOTE: During installation, install the lock pin as shown after tightening the new castle nut.
    Fig 2: Lock Pin And Castle Nut With Torque Specifications
    G08054954Courtesy of AMERICAN HONDA MOTOR CO., INC.
  5. Disconnect the lower arm ball joint from the knuckle using the ball joint thread protector and the ball joint remover (see BALL JOINT REMOVAL ).
    NOTE:
    • Be careful not to damage the ball joint boot when installing the remover.
    • Do not force or hammer on the lower arm, or pry between the lower arm and the knuckle. You could damage the ball joint.
  6. Remove the stabilizer bar bushing holder mounting bolt (A).
    NOTE: During installation, install the mounting bolt after tightening the lower arm mounting 14 mm bolts to the specified torque.
    Fig 3: Stabilizer Bar Bushing Holder Mounting Bolts With Torque Specifications
    G08054955Courtesy of AMERICAN HONDA MOTOR CO., INC.
  7. Remove the lower arm mounting 14 mm and 16 mm bolts, then remove the lower arm (B) from the front suspension subframe.
    NOTE: Use the new mounting bolts during reassembly.
  8. Remove the lower arm stops (A).
    NOTE: During installation, align the slot (B) on the lower arm stop with the lug portion (C) on the front side of lower arm bushing.
    Fig 4: Identifying Lower Arm Stops, Slot On Lower Arm Stop With Lug Portion On Front Side Of Lower Arm Bushing
    G08054956Courtesy of AMERICAN HONDA MOTOR CO., INC.
  9. Install the lower arm in the reverse order of removal, and note these items:
    • First install all the components, and lightly tighten the bolts and nuts, then raise the suspension to load it with the vehicle's weight before fully tightening to the specified torque. Do not place the jack against the ball joint of the lower arm.
    • Be careful not to damage the ball joint boot when connecting the knuckle.
    • Before connecting the lower arm ball joint to the knuckle, degrease the threaded section and tapered portion of the ball joint pin, the ball joint connecting hole, the threaded section and mating surfaces of the castle nut.
    • Torque the castle nut to the lower torque specification, then tighten it only far enough to align the slot with the ball joint pin hole. Do not align the castle nut by loosening it.
    • Before installing the wheel, clean the mating surfaces between the brake disc and the inside of the wheel.
  10. Check the wheel alignment, and adjust it if necessary (see WHEEL ALIGNMENT ).
  11. With headlight leveling system: Do the headlight initial position learning procedure (see HEADLIGHT INITIAL POSITION LEARNING PROCEDURE ).
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