Leaks & Smells
What is the fluid leaking under my car?
Spotting a puddle under your car is alarming, but the color and location of the fluid tell you a lot about how urgent it is. Some leaks are minor; others, like brake fluid or coolant, deserve quick attention.
Quick Answer
Identify a leak by its color: brown or black is engine oil, red or reddish-brown is transmission or power-steering fluid, green/orange/pink is coolant, and a clear oily fluid is often brake fluid. Clear water is usually just A/C condensation and harmless. Coolant and brake-fluid leaks should be inspected promptly.
Most Likely Causes
Listed from most to least likely. Only a proper inspection can confirm the exact cause for your vehicle.
- 1
Engine oil leak (brown/black)
Most likelyOil leaks from a worn gasket, seal, or the oil pan are common. Dark brown to black fluid near the front-center of the engine usually points here.
- 2
Coolant leak (green, orange, or pink)
CommonA sweet-smelling, brightly colored puddle is coolant — from a hose, the radiator, or the water pump. Address it before it leads to overheating.
- 3
Transmission or power-steering fluid (red)
PossibleReddish fluid usually means a transmission or power-steering leak. Low fluid here can cause shifting or steering problems.
- 4
Brake fluid (clear to amber, oily)
Less common (serious)A thin, oily fluid near a wheel or under the brake pedal area can be brake fluid — a safety concern that needs immediate inspection.
How Adam & Son Diagnoses It
Identify and locate
We confirm which fluid is leaking and trace it to its exact source, since drips can travel before they fall.
Inspect the system
We check the affected system’s level and condition and look for related damage, then photograph the source.
Honest recommendation
You get a plain-English explanation and an estimate — we tell you what is urgent and what can wait.
Related Services
The repairs and inspections that address this symptom.
Frequently Asked Questions
Worried About This? Let's Take a Look.
No commission sales. Digital inspections with photos. Honest answers about what needs fixing now and what can wait. Every repair supports the Stranded Motorist Fund.