GM Service Manual Online
For 1990-2009 cars only

Special Tools

J 39822 Wiper Arm Puller

Removal Procedure


    Object Number: 497988  Size: SH
  1. Set the wipers in the Park position.
  2. Disconnect the washer hose elbow from the air inlet grille panel.
  3. Remove the cover from the nut on the wiper arm.
  4. Remove the nut from the wiper arm.
  5. Note: Use a J 39822 or a battery terminal puller to remove the wiper arm if rocking the wiper arm fails to loosen from the drive shaft.

  6. Rock the wiper arm back and forth to loosen arm from the drive shaft.
  7. Remove the wiper arm from the drive shaft.
  8. Remove the wiper blade from the wiper arm. Refer to Windshield Wiper Blade Replacement.

Installation Procedure


    Object Number: 497990  Size: SH
  1. Install the wiper blade onto the wiper arm. Refer to Windshield Wiper Blade Replacement.
  2. Note: Do not interchange the LH and RH wiper arms. The wiper arms are stamped with LH and RH.

    Hold the measuring device at 90 degrees perpendicular to the wiper blade.

  3. Install the wiper arm onto the drive shaft while maintaining the following distances between the wiper blade tip and the air inlet grille panel.
  4. • LH -- 70 mm (2.75 in)
    • RH -- 65 mm (2.56 in)

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 497988  Size: SH
  5. Install the nut on the wiper arm.
  6. Tighten
    Tighten the nut to 26 N·m (19 lb ft).

  7. Install the cover on the nut.
  8. Install the washer hose elbow onto the air inlet grille panel.
  9. Operate the wipers and inspect for proper operation.