Leak identification

The formation of drips on the garage floor or parking area, as well as excessive moisture in the components located under the hood, indicate the development of leaks, the sources of which must be identified and eliminated without delay. In some cases, the identification of leaks is quite a challenge, especially when the power unit is heavily contaminated. It should be borne in mind that often traces of leakage of oil or other working fluids are carried away from the source by the oncoming air flow, which must certainly be taken into account in the verification process.

Warning! Do not forget that most automotive oils and fluids are highly toxic substances. Try not to allow liquids to come into contact with exposed areas of the body. If contact cannot be avoided, immediately rinse contaminated skin with plenty of water.

Note. Often, the source of a leak can be determined by the odor emitted by the leaking liquid. Some liquids have a characteristic color. Keep in mind that some of the leaks only show up when the engine is running.

Oil pan

Engine oil can leak through the oil pan drain plug...

Oil filter

... or through the junction of the oil filter with the engine block

Transmission oil

Transmission oil leaks can occur through the seals used to seal the inner ends of the drive shafts in the differential

Antifreeze

Coolant leaks usually show up as a white crystalline coating.

Brake fluid

The formation of drips on the inside of the wheels is almost certainly associated with brake fluid leaks.

Power steering fluid (PAS)

PAS fluid leaks can occur through the nipple connections of the hydraulic lines on the steering rack housing.