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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1928 (Engine Mechanical - 3.5L) >> Diagnostic Information and Procedures >> Oil Leak Diagnosis >> Visual Inspection Method

Visual Inspection Method

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

Complete the following steps in order to perform the visual inspection method:

  1. Bring the vehicle to normal operating temperature.
  2. Park the vehicle over a large sheet of paper, or other clean surface.
  3. Wait several minutes, then inspect for dripping fluids.
  4. Identify the type of fluid, and the approximate location of the leak.
  5. Visually inspect the suspected area. Use a small mirror if necessary.
  6. Inspect for leaks at sealing surfaces, fittings, or from cracked or damaged components.
  7. If you cannot locate the leak, perform the following steps:
    1. Completely clean the entire engine and surrounding components.
    2. Operate the vehicle for several miles at normal operation temperature and at varying speeds.
    3. Park the vehicle over a large sheet of paper, or other clean surface.
    4. Wait several minutes, then inspect for dripping fluids.
    5. Identify the type of fluid, and the approximate location of the leak.
    6. Visually inspect the suspected area. Use a small mirror if necessary.
  8. If you still cannot locate the leak, use the powder method or the black light and dye method.