GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2008 🢒 Caprice WM 🢒 General Information 🢒 Waterleaks 🢒 Dust Leaks
    • Dust may leak into the vehicle where water will not. This happens particularly in the lower portion of the interior.
    • Forward motion of the vehicle can create a slight vacuum which pulls air and dust into the vehicle.
    • In order to determine the location of dust leaks, perform the following steps:
  1. Remove the interior floor mats.
  2. Remove the kick panels.
  3. Remove the interior floor insulation.
  4. Remove the kick panel insulation.
  5. Drive the vehicle on a dusty road.
  6. Examine the interior.

    7. Dust in the shape of a small cone or slit will usually be found at the point of leakage.

  7. Mark the points of leakage.

    8. Important: Make sure that the interior is darkened when performing this step.

  8. Shine bright lamps on the underside of the floor and the bulkhead.
  9. Have an assistant mark any points inside of the vehicle for any points where the light shines through.
    10. • Inspect the weld joints.
    • Inspect the body mounts.
  10. Seal any leaks with an air-drying, body-sealing compound.