1993 Toyota 4Runner Brake fluid leak

1993 TOYOTA 4RUNNER
260,000 MILES • 6 CYL • 4WD • MANUAL
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DWFI
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  • 1 POST
Every 750 miles, the brake light comes on and the brake fluid reservoir is at MIN.

I fill it upto MAX, the light goes out and then 750 miles later, its low again.

There are no visible leaks at the wheels or any of the steel brake lines under the truck.

What is the most likely explanation ?
Nov 26, 2008 at 4:50 PM
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MHPAUTOS
  • ✓ASE Certified Mechanic
  • 31,937 POSTS
  • ASE Certified Mechanic
Hi there,

Check the master cylinder it may be leaking into the booster from the back seal.

Mark (mhpautos)
Nov 27, 2008 at 1:56 AM
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