OEM 2008 Toyota Tacoma Power Steering Pump

2008 Toyota Tacoma Power Steering Pump Parts Q&A

• Q: How to reassemble the Power Steering Pump on 2008 Toyota Tacoma?

  A: Installation of new vane pump housing oil seal requires power steering fluid coating on its lip that Special Service Tools 09950-60010 09951-00280 must apply with a press tool to insert the seal correctly. The vane pump shaft must receive power steering fluid coating on the housing front bushing before slow insertion occurs to safeguard the oil seal lip from damage. After coating an O-ring with power steering fluid the technician installs it on the vane pump housing front and places a different O-ring on the side plate ensuring the dent of the side plate lines up correctly with the housing before final installation. Begin by having the dent of the cam ring match the dent of the side plate before installing both components while maintaining the inscribed marks facing outward. Coat the 10 vane plates of the vane pump rotor with power steering fluid before installing it with the round vane plate ends resting outward. Install a fresh snap ring on the pulley shaft by using a snap ring expander while the new O-ring should receive power steering fluid coating before its installation into the vane pump housing rear position. Ensure the straight pin aligns with the cam ring dents and side plate dents as well as the housing front dents before tightening all four bolts to a torque value of 22 Nm (224 kgf-cm, 16 ft-lbf). Verify the preload condition by rotating the pump without noise then check the torque using a torque wrench that should be between 0.27 Nm (2.8 kgf-cm, 2.4 in-lbf) and less. Apply power steering fluid on the power steering oil pressure switch O-ring before installing it onto the vane pump assembly with a torque setting of 21 Nm (214 kgf-cm, 15 ft-lbf). After applying power steering fluid coatings to the compression spring and flow control valve the technician should install these units followed by O-ring application with power steering fluid before torquing the pressure port union to 69 Nm (704 kgf-cm, 51 ft-lbf). Fresh O-rings must be coated with power steering fluid prior to installation on the vane pump oil reservoir by securing three bolts with 9.0 Nm (92 kgf-cm, 80 in-lbf) torque.