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 of the vehicle.
  4. Inspect for bubbles on the outside of the vehicle at the suspected leak area.