1999 Ford Mustang Some kind of leak

  • 1 POST
  • 6 CYL
  • RWD
  • 200,000 MILES

I have a clear, oily leak coming from my car. I've read that ito brake fluid but my brakes are fine and the reservior is full and the color has a brown tint to it, so I don't think its that. I looked under the car and from what I could see, it's all over the oil pan and transmission. What could it be?

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Thursday, October 9th, 2014 AT 6:47 AM

1 Reply

  • 29,768 POSTS

You need to have a mechanic look at it, and he may tell you to wash the engine so the source of the leak can be found. Brake fluid will turn dark from being hot. That alone is not a sign it's bad or is full of moisture. Engine oil starts out looking like honey, then eventually turns brown, then black. Power steering fluid is usually clear, but it's red in some cars. That is less likely to change color. Transmission fluid is red but it will get much darker after it has been hot, and it will turn real dark brown if it has been overheated. Usually by the time that happens, replacing it isn't going to save the transmission. The internal damage has already been done.

As a side note, since you're poking around the brake fluid, be absolutely certain you don't get the slightest hint of petroleum product in there. That includes engine oil, transmission fluid, power steering fluid, and axle grease. Most professionals even wash their hands before they handle parts that will contact brake fluid so they don't get fingerprint grease in there. I have to mention this because if the brake fluid gets contaminated, the only proper repair will usually cost more than a car with 200,000 miles is worth.

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Thursday, October 9th, 2014 AT 4:54 PM

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