OEM 2004 Toyota Land Cruiser Brake Master Cylinder

2004 Toyota Land Cruiser Parts Questions & Experts Answers

• Q: How to Remove and Install the Brake Master Cylinder and Hydraulic Brake Booster Assembly on 2004 Toyota Land Cruiser?

  A: The first step includes confirming the ignition switch remains in the OFF position while performing the brake pedal depresstion sequence more than 40 times. The reduction of power supply system pressure causes reaction force lightening which prolongs the stroke duration. The brake actuator tube No. 1 should only receive high pressure when the work is finished without tube deformation until you turn ON the ignition switch. Begin by suctioning fluid with a syringe but avoid contact with paint unless immediate cleaning actions are possible. Trim the scuff plate and cowl side and lower No. 1 panel along with LH lower panel and No. 2 heater to register duct from the vehicle. It is necessary to uninstall the ABS or ABS and TRAC and VSC ECU for vehicles with ABS by removing its 2 nuts before torquing them to 5.0 Nm (51 kgf-cm, 44 inch lbs.). The brake lines require disconnecting using Special Service Tool: 09023-00100 to a torque of 15 Nm (155 kgf-cm, 11 ft. lbs.) before cutting 3 connectors on vehicles with ABS only. The installation required disconnecting 5 connectors before using the same tool to remove the 4 brake lines which should be torqued to 15 Nm (155 kgf-cm, 11 ft. lbs.). Users should first remove the clip and clevis pin before taking out the hydraulic brake booster assembly by unfastening and torquing to 15 Nm (155 kgf-cm, 11 ft. lbs.) the 4 booster installation nuts. After that users can uninstall the booster assembly and gasket. Reverse installation procedures should be followed while installation progress requires filling the brake fluid reservoir then bleeding the brake system and performing leak checks.