PullLeaks: identify by fluid color
General info, not professional advice. These are common causes that apply to most cars, not a diagnosis of yours. If you are unsure or a problem affects brakes, steering, airbags or fuel, see a qualified mechanic.
Likely causes (most common first)
- Clear and watery, no smell
Usually normal A/C condensation, often near the front passenger side. - Green, orange or pink and sweet-smelling
Coolant: hoses, radiator, water pump.
🔎 Find a used radiator hose - Brown or black and oily
Engine oil: valve cover or oil pan gaskets, oil filter.
🔎 Find a used valve cover gasket - Red or pink and oily
Often transmission fluid or power steering fluid.
🔎 Find a used transmission - Clear to yellowish and slick, near the wheels
Possibly brake fluid. Treat this as urgent.
🔎 Find a used brake caliper - Blue and thin
Washer fluid: reservoir or hoses.
🔎 Find a used washer fluid reservoir
Quick safe checks
- Put a piece of white cardboard under the car overnight to see color and location.
- Check each fluid level with the engine cool and the car level.
- Note where the drip is: front center, under the wheels, middle or rear.
Safety first
- ⚠️ Many automotive fluids are toxic. Antifreeze tastes sweet to pets. Clean up spills and dispose of fluids at a recycling center.
- ⚠️ Never open a radiator or coolant cap on a hot engine. Hot coolant is under pressure and can cause severe burns. Wait until the engine is cool.
- ⚠️ Brakes are safety-critical. If the pedal feels soft or sinks, or the car pulls hard, don't drive it. Have it towed or inspected.
When to see a pro
Brake fluid is leaking, a puddle is large or growing, or a fluid warning light comes on. Don't drive with low brake fluid or with oil pressure warnings.