Fluid Leaks: Evaluating the Engine's Condition

When inspecting the engine, check it for leaks. There are many different fluids under the hood of an automobile so care must be taken to identify the type of fluid that is leaking.

Identification of fluid leaks.

Carefully look at the top and sides of the engine, and note any wet residue that may be present. Sometimes road dirt will
mix with the leaking fluid and create a heavy coating. Also look under the vehicle for signs of leaks or drips; make sure you have good lighting. Note the areas around the leaks and identify the possible causes. Methods for positively identifying the source of leaks from various components are covered later in this section. All leaks should be corrected because they can result in more serious problems.

Oil leaking from around the oil pan gasket.

Sometimes smell will identify the fluid. Gasoline evaporates when it leaks out and may not leave any residue, but it is easy to identify by its smell.