GM Service Manual Online
For 1990-2009 cars only

Notice: The air hose test should only be used on fully cured urethane adhesive. Otherwise, damage to the urethane adhesive bead could result in additional leaks.

Important: Pinpoint the leak area before any repair is made. Random repair may only temporarily restrict water entry and make future diagnosis and repair more difficult.


    Object Number: 95574  Size: SH
  1. Apply soapy water to the suspected area.

  2. Object Number: 95573  Size: SH

    Important: Do not exceed 205 kPa (30 psi).

  3. Apply air pressure using an air hose from inside the vehicle.
  4. Inspect for bubbles on the outside at the suspected leak area.