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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1477 (Water Leaks) >> Diagnostic Information and Procedures >> Air Hose Test

Air Hose Test

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Performing Air Hose Test
    GM95574Courtesy of GENERAL MOTORS CORP.
    NOTE: 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.
  1. Using a liquid detergent, diluted with water in a spray bottle, spray the window at the edges. Begin at the bottom and gradually move up and across the top.
  2. IMPORTANT: The compressed air should not exceed 205 kPa (30 psi).
  3. Have an assistant inside of the vehicle with an air hose.
  4. Have the assistant aim the compressed air at the suspected areas.

    Bubbles will form in the soap solution at the location of the leak.