Q: How to remove the timing belt on 2001 Toyota Sequoia?
A: The first step for timing belt removal involves engine under cover removal followed by engine coolant draining then taking out the radiator assembly. Start by taking away the throttle body cover before doing the intake air connector assembly. Begin by unfastening the 4 nuts which keep the fluid coupling fixed to the fan bracket before you eliminate the drive belt together with the fan and fluid coupling assembly and fan pulley. Securely suspend the PS pump after removing its three bolts before disconnecting it. First remove the pulley bolt followed by removal of the cover plate together with the idler pulley. The RH No.3 timing belt cover requires removal after unfastening its 3 bolts and nut and separating its engine wire from two wire clamps followed by unfastening the 4 bolts and nut securing the LH No.3 timing belt cover then disconnecting the camshaft position sensor wire and connector before removing the wire grommet and completing cover removal with its bolt, nut, and oil cooler pipe. Unfasten the two bolts from the second timing belt cover and disconnect the air conditioning compressor from the engine during this process. Lastly, remove the fan bracket by unfastening the two bolts and nuts. It is essential to inspect for existing 3 points of installation when maintaining the timing belt although new marks should be added if any points are missing before performing removal. First loosen the crankshaft pulley bolt using SST 09213-70010 (9010-08076), 09330-00021 while setting the No.1 cylinder at TDC/compression position by aligning the crankshaft pulley groove with timing mark "0" of the No.1 timing belt cover and making sure the camshaft timing pulleys and timing belt rear plates maintain their alignment. Tighten the crankshaft pulley bolt by using SST 09213-70010 (9010-08076), 09330-00021 on the pulley. The timing belt tensioner needs removal while following up with new installation markings on the timing belt when using it a second time. From there disconnect the timing belt from camshaft timing pulleys through loosenments of the tension spring using SST 09960-10010 (09962-01000, 09963-01000). After using SST 09960-10010 (09962-01000, 09963-01000) to remove all camshaft timing pulleys there should be a complete removal of the generator and drive belt tensioner. Remove the crankshaft pulley using SST 09950-50012 (09951-05010, 09952-05010, 09953-05010, 09953-05020, 09954-05020) by avoiding any turns on its position. The technician keeps a new installation mark when reusing the timing belt before removing the No.1 timing belt cover and timing belt guide, timing belt cover spacer and timing belt from its location. Access the No.1 idler pulley and No.2 idler pulley using a 10 mm hexagon wrench to separate them from their placements while the crankshaft timing pulley requires SST 09950-50012 (09951-05010, 09952-05010, 09953-05010, 09953-05020, 09954-05010) to extract it without rotation. Check for any defects in the timing belt that avoid bending, twisting, exposure to oil or water or steam presence and verify that idler pulleys function without oil leakage while running smoothly. Use SST 09223-46011 to tap in the timing pulley set key into the key groove for installing the crankshaft timing pulley. Place the No.1 idler pulley and No.2 idler pulley on the pivot bolt with adhesive while verifying their general mobility. Position the timing belt for temporary installation while ensuring the installation mark points to the timing mark of the crankshaft timing pulley before adding the timing belt cover spacer and timing belt guide. Position the No.1 timing belt cover by inserting 4 bolts while the crankshaft pulley requires installation with SST 09223-46011 after aligning the pulley set key. Seal the generator by first installing the drive belt tensioner with its bolt and 2 nuts while maintaining proper torque on the setup. The crankshaft pulley's position needs verification to see that its timing mark matches with timing mark "0" of the No.1 timing belt cover. Secure the RH and LH camshaft timing pulleys through correct alignment steps and torque them into place before you connect the timing belt to the two pulleys. Press the push rod to set timing belt tensioner then lock it down with an hexagon wrench before putting the tensioner into place. Tighten its mounting bolts afterward. Turn the crankshaft pulley to check valve timing alignment of the marks following which reinstall the timing belt. Secure the crankshaft pulley bolt through the use of SST 09213-54015 (90119-08216), 09330-00021 until reaching the specified torque specification. Afterwards, implement the fan bracket and A/C compressor following installation requirements. Securely fasten the No.2 timing belt cover with other clamps while installing the RH and LH No.3 timing belt covers. The last operation involves installing the drive belt idler pulley and PS pump and fan pulley, fan, fluid coupling assembly and drive belt. You should also install the intake air connector assembly, throttle body cover, radiator assembly and engine coolant filling procedure and engine start check for leaks along with engine coolant recheck and finally installing the engine under cover.