OEM 2006 Toyota Sienna Wheel Hub

2006 Toyota Sienna Parts Questions & Experts Answers

• Q: How to service and repair the front Wheel Hub on 2006 Toyota Sienna?

  A: The service procedure for front wheel hub repair begins with measuring front wheel hub bearing backlash using a dial gauge then inspecting the bearing hub outside surface deviation; any measurement over 0.05 mm (0.0020 inch) requires bearing replacement. Check the bearing deviation in the surface of the wheel hub outside the hub bolt to determine whether replacement of the wheel hub is necessary based on 0.05 mm (0.0020 inch). The front wheel should be unscrewed before removing the front wheel hub LH nut followed by speed sensor front LH separation and then detaching front disc brake caliper assembly LH with its 2 bolts while supporting the caliper. Execute this procedure by first removing the front disc followed by breaking the tie rod end sub-assembly LH along with the front suspension arm sub-assembly lower No.1 LH before proceeding to separate the front wheel assembly LH through usage of a plastic hammer on the front drive shaft assembly LH and front wheel hub sub-assembly LH while protecting the boot and ABS speed sensor rotor. Special Service Tool 09628-62011(s) enables disassembly of the front LH lower ball joint assembly followed by using a screwdriver to take off the front wheel bearing dust deflector No.1 LH and extracting the front wheel hub LH hole snap ring with snap ring pliers. Use Special Service Tool 09520-00031(s) to remove the front wheel assembly LH which enables you to press out the bearing inner race from the front wheel hub sub-assembly LH using Special Service Tools 09950-00020 09950-60010 (09951-00430) and 09950-70010 (09951-07100)(s). The front wheel hub LH bearing needs a torx wrench (T30) for removal followed by the front wheel hub LH bearing extraction using a press with Special Service Tools: 09950-60010 (09951-00600), 09950-70010 (09951-07100)(s). To reassemble the components you need to install a new front wheel hub LH bearing using Special Service Tool: 09950-60020 (09951-00810), 09950-70010 (09951-07100)(s) and a press followed by installation of the disc brake dust cover front LH while torquing the 4 bolts to 8.3 Nm (85 kg-cm, 74 inch lbs.). Place the front wheel hub sub-assembly LH with Special Service Tools: 09608-32010, 09950-60020 (09951-00810), 09950-70010 (09951-07100)(s) and a press into position before installing the front wheel hub LH hole snap ring with snap ring pliers and the front wheel bearing dust deflector No.1 LH using tools 09316-60011 (09316-00011, 09316-00031), 09608-32010(s) and a hammer by verifying the speed sensor hole maintains proper alignment. Fasten the lower ball joint assembly front LH with a 1,250 kg-cm torque, then protect it using a new cotter pin. Reuse the nuts for the front wheel assembly LH by applying a small engine oil amount on the screw portions before installation while avoiding forceful contact that could hurt both joint boot and speed sensor rotor parts. Torque to 230 Nm (2,350 kg-cm, 170 ft. lbs.). After mounting and torquing (104 Nm) the front suspension arm sub-assembly lower No.1 LH along with the tie rod end sub-assembly LH and the front disc and front disc brake caliper assembly LH. The front wheel hub LH nut requires installation with a 30 mm socket wrench at 294 Nm (3,000 kg-cm, 217 ft. lbs.) while hammer-staking with a chisel marks the end. The last step includes installing the front wheel then torquing it to 103 Nm (1,050 kg-cm, 76 ft. lbs.) while performing a wheel alignment check and testing the ABS speed sensor signal for EBD, BA, TRAC, and VSC systems.