GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2008 🢒 Envoy - 2WD 🢒 Body Systems 🢒 Wipers and Washers 🢒 Wiper Arm Tip Pressure Check

Wiper Arm Pressure Check
  1. Run the wiper arms to the mid-wipe position.
  2. Remove the wiper blades from the wiper arms. Refer to Windshield Wiper 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).

    4. Object Number: 415980 Size: SH
  4. Replace the wiper arms if the measurement is not within the specified values. Refer to Windshield Wiper Blade Replacement .

    5. Tip Pressure
    7.8-9.5 (28-34 oz)