OEM 2006 Toyota 4Runner Rack And Pinion

2006 Toyota 4Runner Parts Questions & Experts Answers

• Q: How to Overhaul the Rack And Pinion in a Power Steering Link Assembly on 2006 Toyota 4Runner?

  A: The Power Steering Link Assembly overhaul process starts with disconnecting the negative terminal of the battery while keeping the front wheels oriented straight ahead. Begin by detaching these components in order: horn button assembly followed by steering wheel assembly with Special Service Tool 09950-50013 and its variations, steering column cover lower, turn signal switch assembly, spiral cable sub-assembly, front wheel, engine under cover assembly rear and engine under cover sub-assembly No.1. The next step requires you to uninstall the stabilizer bar front while separating the tie rod end sub-assembly LH by taking off its cotter pin and nut then applying Special Service Tool: 09628-62011 to detach the sub-assembly from the steering knuckle arm. A similar process must be followed on the right-hand side assembly. The same process needs application on the RH side. The technician should disconnect the pressure feed tube assembly using Special Service Tool: 09023-12700 followed by disconnecting the rack and pinion outlet return tube with Special Service Tool: 09023-12701 while removing the steering intermediate shaft sub-assembly No.2 from the system. The removal of the power steering link assembly demands you to unscrew 2 bolts and 2 nuts but be aware you should turn the bolts rather than the nuts. Remove the power steering link assembly by first using Special Service Tool: 09023-38201 to disconnect two turn pressure tubes followed by a vise installation using Special Service Tool : 09612-00012. Disassemble the LH and RH tie rod end sub-associations then detach both steering rack boot clamps and clips from both sides with caution toward the boots. Begin by unstaking the washer on the rack and pinion end sub-assembly while steadying the rack with a spanner and using Special Service Tool: 09922-10010 to detach the rack end. Special Service Tool: 09922-10010 along with a hexagon wrench (24 mm) can be used to remove the rack guide and spring. The power steering control valve can be removed by unlocking 2 bolts before pulling out the assembly and removing the O-ring. Mount the control valve assembly into a soft jaw vise before using Special Service Tool: 09631-20060 to remove the bearing guide nut without damaging the oil seal lip. Use Special Service Tools 09950-60010 (00951-00300) and 09950-70010 (00951-07100) with a hammer to drive out the oil seal from its position. This operation needs to be followed by separating the teflon rings and union seat. Special Service Tool: 09950-70010 (09951-07150), 09950-60010 (09951-00250) needs to be used for pressing out the bearing and oil seal at the power steering control valve upper oil seal. To remove the cylinder end stopper and O-ring you need Special Service Tool: 09631-20120 followed by rack and pinion and oil seal extraction using Special Service Tool: 09950-70010 (09951-07200). The power steering rack needs to be inspected for clogging before performing checks on the proper torque for tie rod end sub-assemblies LH and RH. Coat the new O-ring along with teflon ring in power steering fluid before adding them to the rack and pinion piston ring. Apply power steering fluid onto Special Service Tool: 09631-00350 before you install the rack and its compatible oil seal in the correct manner. To finish the repair process you should use Special Service Tool: 09631-20120 to torque the cylinder end stopper to 145 Nm (1,479 kgf-cm, 107 ft. lbs.) while utilizing the new O-ring then verify vacuum stability through Special Service Tool: 09631-12071 (09633-00010).