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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 780 (Wiper System & Washer System) >> Diagnostic Information & Procedures >> Wiper Arm Tip Pressure Check

Wiper Arm Tip Pressure Check

WARNING: This page is about a different car, the 2002 GMC Safari and 2002 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Checking Wiper Arm Tip Pressure
G02506077Courtesy of GENERAL MOTORS CORP.
  1. Run the wiper arm and blade assemblies to the mid wipe position.
  2. Remove the blade from the arm.
  3. Attach a scale to the wiper arm tip and measure the force required to lift the arm perpendicular to the windshield to the normal working height of the arm (the height with the blade attached). The force required should be between 8.3 and 10.1 Newtons (30 to 36 ounces).
  4. Replace the arm if tip pressure is not within specifications.