OEM 2006 Toyota Sequoia Power Steering Pump

2006 Toyota Sequoia Parts Questions & Experts Answers

• Q: How to service and repair the power steering pump on 2006 Toyota Sequoia?

  A: The first step for power steering pump maintenance includes disassembling the air cleaner assembly while also detaching the air cleaner hose through MAF meter connector removal and hose and clamp detachment followed by removing the 3 bolts. You must begin by using the drive belt tensioner to turn counterclockwise for loosening the drive belt tension. Afterward remove the drive belt. To disconnect the vacuum hoses use the 2 clips for removal and the return hose requires removal of its clip. Unscrew and detach the pressure feed tube assembly through its union bolt and gasket and separate the pressure feed tube. Pull out the vane pump assembly through the removal of its 2 bolts, nut and stud bolt. The process of vise installation demands no excessive force because it can damage components. Measure the vane pump rotating torque for 0.28 Nm (2.8 kgf-cm, 2.4 inch lbs.) or less then check the oil clearance between the vane pump shaft and bushing which must be between 0.03 to 0.05 mm (0.0012 to 0.0020 inch) with a maximum of 0.07 mm (0.0028 inch). Examine the vane pump rotor along with vane plates to verify they exceed 8.6 mm (0.339 inch) height and 1.397 mm (0.0550 inch) thickness and 14.991 mm (0.5902 inch) in length. Fully check the flow control valve for operational performance while examining the spring free length for a minimum of 33.2 mm (1.307 inch). The technician must install the new oil seal through Special Service Tools 09950-60010 (09951-00330) and 09950-70010 (09951-07100) after applying power steering fluid to them. Attaching new pins to the cam ring requires tapping into them along with putting power steering fluid on marked assembly components. The reassembly process also includes installing the vane pump shaft with the pulley. Place the cam ring and vane pump rotor with their inscribed marks exposed to the outside before mounting 10 vane plates combined with a fresh gasket. Screw 4 bolts into the rear housing after securing 2 coated O-rings on the wave washer and side plate using power steering fluid with torques set to 24 Nm (240 kgf-cm, 17 ft. lbs.). Secure the flow control valve and pressure port union along with the suction port union by following the recommended torque values which stand at 83 Nm (850 kgf-cm, 61 ft. lbs.) for the pressure port union and 13 Nm (130 kgf-cm, 9 ft. lbs.) for the suction port union. Install all components including the vane pump assembly together with pressure feed tube assembly, return hose, vacuum hoses, and fan and generator V-belt as well as the air cleaner assembly while making sure to secure every connection point and verifying that the system contains no air.