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Home >> Chevrolet >> 2005 >> Optra5 LS, Standard >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Mechanical >> Engine Mechanical - 2.0L (L34 GMDAT) >> Diagnostic Information and Procedures >> Oil Leak Diagnosis >> Finding the Leak >> Notes

Finding the Leak: Notes

  1. Identify the fluid. Determine whether it is engine oil, automatic transmission fluid, power steering fluid, etc.
  2. Identify where the fluid is leaking from.
    1. After running the vehicle at normal operating temperatures, park the vehicle over a large sheet of paper.
    2. Wait a few minutes.
    3. You should be able to find the approximate location of the leak by the drippings on the paper.
  3. Visually inspect around the suspected component. Inspect around all the gasket mating surfaces for leaks. A mirror is useful for finding leaks in areas that are hard to reach.
  4. If the leak still cannot be found, it may be necessary to clean the suspected area with a degreaser, steam, or spray solvent.
    1. Clean the area well.
    2. Dry the area.
    3. Operate the vehicle for several miles at normal operating temperature and varying speeds.
    4. After operating the vehicle, visually inspect the suspected component.
    5. If the leak is not located, try using the powder or black light and dye method.
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