TROUBLESHOOTING

Car Leaking Fluid? Identify It by Color

A spot under your car can be harmless water from the AC or a sign of an oil, coolant, brake, or transmission leak. The color, feel, and location of the drip usually tell you which one it is.

If the fluid is brake fluid (clear to light yellow and slippery, often near a wheel), or the brake pedal feels soft, don't drive the car. Have it towed or inspected. A large puddle of any fluid, or a leak with a warning light on, also needs attention before driving further.

Quick checks you can do safely

Slide a piece of white cardboard under the car overnight to see the color and exactly where the drip lands.
Clear and watery with no smell, under the front passenger side, is usually normal condensation from the AC.
Brown to black is usually engine oil. Red or pink is usually transmission or power steering fluid. Green, orange, or pink with a sweet smell is usually coolant.
Check the engine oil and coolant levels with the engine off and cool, and note whether either is low.

What's usually behind it

A leaking oil pan gasket, valve cover gasket, or drain plug
A leaking radiator, water pump, or coolant hose
A transmission or power steering line or seal leak
A brake line, caliper, or wheel cylinder leak

Still not sure? Let us take a look.

These checks can point you in the right direction, but a proper diagnosis needs the right equipment. We'll find the actual cause and explain it before recommending any work.

QUESTIONS

Car Leaking Fluid: common questions

Is water dripping from my car normal?

Usually, yes. Clear water under the front of the car after running the AC is condensation, which is normal. If it's not clear, feels slippery, or has a smell, it's a fluid leak worth checking.

Can I keep driving with a small oil leak?

For a short time, if you keep the oil topped up, but small leaks tend to grow, and oil dripping onto hot parts can cause a burning smell or smoke. It's cheaper to fix early.

This guide is general information, not a diagnosis. Every vehicle is different, and our technicians will confirm the cause before recommending repairs. Serving Mission Viejo, Rancho Santa Margarita, Laguna Hills and nearby communities.