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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 237 (Engine Mechanical - 3.9L) >> Diagnostic Information and Procedures >> Oil Leak Diagnosis >> Black Light and Dye Method

Black Light and Dye Method

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.

A dye and light kit is available for finding leaks.

  1. Use the J 28428-E  or the equivalent. Refer to the manufacturer's instructions when using the tool.
  2. Visually inspect the suspected area. Use a small mirror if necessary

    Refer to Possible Causes for Leaks  if necessary.

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