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Wiper Arm Pressure Check

WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Run the wiper arms to the mid-wipe position.
  2. Remove the wiper blades from the wiper arms. Refer to Wiper Arm Blade Replacement .
  3. Attach a scale to the end of the wiper arm and measure the force required to lift the wiper arm perpendicular to the windshield to the normal working height (the height with the blade attached).
    Fig 1: Wiper Arm Pressure Check
    GM415980Courtesy of GENERAL MOTORS CORP.
  4. Replace the wiper arms if the measurement is not within the specified values. Refer to Wiper Arm Blade Replacement .

    Tip Pressure:  7.8-9.5 (28-34 oz)

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