Brake Problem on 2003 Toyota 4Runner

Brake pedal intermittently goes almost to floor, bled the fronts, no improvement, Master Cylinder Problem?

by in Shady Spring, WV on July 17, 2010
1 answer
ANSWER by on February 22, 2011
I had the same problem, tech said almost all Toyotas have this problem, it's the caliper piston that needs cleaning, take the caliper apart, clean the cylinder very well removing any material on the piston.
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At 125,000-150,000 miles, the Master Cylinder may need replacing. It is critical to adjust the brake pedal to Master Cylinder pushrod clearance or the brakes will drag and over heat.
It is very important that the rear level sensor is properly bled after any brake work or the rear brake stopping efficiency may be compromised.
I was told that efi service was recommended. Also what mm should brakes be replaced?
Front brake rotors can wear causing a pulsation felt in the brake pedal. Our technicians tell...

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