OEM 2007 Toyota Sienna Rack And Pinion

2007 Toyota Sienna Parts Questions & Experts Answers

• Q: How to service and repair the rack and pinion power steering gear on 2007 Toyota Sienna?

  A: The rack and pinion power steering rack and pinion servicing process starts with checking the center front wheel before removing the steering wheel and front wheel. You must use Special Service Tool: 09628-62011 to split the tie rod assemblies for both the left-hand and right-hand sides. Apply seat belt to fix the steering wheel before unwinding 3 springs to remove the dust cover. Also apply match marks to both the intermediate shaft assembly and rack and pinion assembly then remove the bolt to separate the intermediate shaft assembly. Utilize in sequence by removing first the front stabilizer link assemblies of both sides followed by separating front stabilizer bracket No. 1 from each side. Remove the pressure feed tube assembly using clip removal and Special Service Tool: 09023-12701. Separated by removing its two bolts and nuts and taking care not to harm the two pressure tubes when removing the rack and pinion power steering rack and pinion assembly. The disassembly process includes using Special Service Tool: 09023-12701 to remove return tube No. 2 and employing Special Service Tool: 09023-38201 to remove both left and right turn pressure tubes with O-rings removal. Secure the rack and pinion assembly with Special Service Tool: 09612-00012 before removing the tie rod assemblies from both sides followed by the steering rack boot clips and clamps without damaging steering rack boot No. 2. The process requires removal of steering rack boots and end sub-assembly with Special Service Tool: 09922-10010 while removing the rack guide. Use a socket wrench with a 27 mm diameter (09616-00011 tool as an accessory to hold the control valve when removing its retaining nut. Use preventive measures to extract the control valve and oil seal while avoiding any damage to the rings' grooves on the rack and pinion control valve. A press combined with Special Service Tool: 09950-70010 (09951-07150) should be used for the upper oil seal installation process. Use Special Service Tool: 09527-21011 and 09612-24014 (09613-22011) for the rack bush oil seal to remove the cylinder end stopper, rack and pinion and bush. Remove the cylinder tube oil seal then the rack steering piston ring while keeping all grooves intact. Measuring the rack and pinion for runout and wear determines if a replacement is required while the tie rod assemblies should have torque set at 0.83 to 3.43 Nm (8.5 to 35.0 kgf-cm, 7.3 to 30.4 inch lbs.) on both sides.