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Home >> Buick >> 2004 >> Century Custom >> Repair and Diagnosis >> Accessories & Equipment >> Wiper/Washer Systems >> Wiper System & Washer System >> Repair Instructions >> Wiper Arm Replacement >> Installation Procedure

Installation Procedure

    Fig 1: Wiper Arm Nut & Cover
    GM334231Courtesy of GENERAL MOTORS CORP.
  1. Install the wiper arms onto the wiper transmission.
  2. Hold the measuring device at a 90 degree angle to the wiper blade while maintaining the following distances:
    • Right arm: 97-107 mm (3.82-4.21 in) from the end of the wiper arm to the air inlet screen
    • Left arm: 125-147 mm (4.92-5.78 in) from the wiper blade tip to the air inlet screen
  3. Apply Threadlocking compound, GM P/N 89021297 (Canadian P/N 10953488) or equivalent, to the wiper arm nut.
    4. NOTE: Refer to Fastener Notice in Cautions and Notices.
  4. Install the wiper arm nut.

    Tighten:  Tighten the nut to 30 N.m (22 lb ft).

  5. Install the wiper arm nut cover.
  6. Connect the washer hose to the wiper arm.
  7. Operate the windshield wipers and inspect for proper operation.
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