OEM 2003 Toyota Tundra Brake Master Cylinder

2003 Toyota Tundra Brake Master Cylinder Parts Q&A

• Q: How to service and repair the Brake Master Cylinder on 2003 Toyota Tundra?

  A: The Brake Master Cylinder servicing process starts with removing the reservoir by unfastening the set screw before pulling it out while maintaining a torque of 1.8 Nm (18 kgf-cm, 16 inch lbs.). Remove first the strainer and cap together from the reservoir so that you can next eliminate 2 grommets. After placing the cylinder in a vise the following step involves pushing the pistons in fully before removing the piston stopper bolt with a screwdriver along with the gasket while maintaining a torque of 10 Nm (100 kgf-cm, 7 ft. lbs.). Apply snap ring pliers while taping the screwdriver tip for safe removal of snap rings through piston pushing with a screwdriver. Take out the No. 1 piston and spring by pulling straight in the direction to protect the cylinder bore. When reassembly begins avoid hitting the piston rubber lips. A rag combined with two wooden blocks should be positioned on the work surface before gently tapping the cylinder flange against the block edges. Allow at least 100 mm (3.94 inch) distance (A) from the rag to the block tops to extract the No. 2 piston and spring. You should examine the cylinder bore for rust or scoring before cleaning all dirty sections and performing necessary replacements. Check the cylinder for signs of wear or damage and handle the replacement process accordingly. Reassembly begins with disassembly in reverse order while technicians should apply lithium soap base glycol grease to the rubber parts that have arrows.