Brake master cylinder may need replacing at 125,000 miles on Toyota 4Runner

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.

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Average mileage: 139,750 (62,000–185,000)
4 model years affected: 1996, 1997, 2003, 2007
6 people reported this problem
3 people shared problem details
2003 Toyota 4Runner162,000
ABS VSC and Brake light came on with a loud beeping noise. Power brakes went out shortly after. Brought it to Toyota and they said brake master cylinder needed to be replaced... $4500.
2003 Toyota 4Runner150,000
Happened on a nice morning, I was heading to the beach with my family. All of a sudden I hear a loud beeping noise. I was really freaking out! I tried to step on the breaks but it wasn't stopping. So I had to use the emergency breaks and try to make it to a auto shop. Went there, they scanned my 4runner and said it's my break master. They told me I needed to change out the whole assembly.
2007 Toyota 4Runner62,000
Noise from master cyl. Pump
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