OEM 2000 Toyota Sienna Timing Belt

2000 Toyota Sienna Parts Questions & Experts Answers

• Q: How to remove and install a timing belt on 2000 Toyota Sienna?

  A: Starting the timing belt removal requires three steps beginning with taking out the outer front cowl top panel assembly before moving to the right-hand front wheel and fender apron seal. Begin by removing the generator drive belt and power steering pump drive belt through the process of loosening their two bolts. The task requires disconnecting the engine coolant reservoir hose from the water outlet as well as separating ground strap connectors and DLC1 from the No. 2 right-hand engine mounting bracket. The right engine mounting stay and engine moving control rod and No. 2 right-hand engine mounting bracket must be removed first before the No. 2 generator bracket requires removing the generator pivot bolt and bracket nut and bracket. To take off the crankshaft pulley bolt Special Service Tool 09213-54015 (91651-60855), 09330-00021 must be used because after that Special Service Tool 09950-50011 (09951-05010, 09952-05010, 09953-05010, 09953-05020, 09954-05020) removes the pulley. The mechanic starts by disassembling the No. 1 timing belt cover through four bolt removal. Afterward they take off the timing belt guide and No. 2 timing belt cover by first disconnecting the engine wire protector clamps before removing five bolts. Set the No. 1 cylinder to TDC compression by installing the crankshaft bolt temporarily while aligning marks through clockwise crankshaft rotation. First remove the mount bracket on the right-hand side by dismantling two bolts and a nut. Before using a reused timing belt drivers must look for three installation marks together with a front mark; drivers should add new marks if the existing ones are not present. Begin by alternately loosening two tensioner bolts to remove the tensioner unit before taking off the timing belt along with the camshaft timing pulleys through the use of Special Service Tool: 09249-63010, 09960-10010 (09962-01000, 09963-01000) for right-hand timing pulley and Special Service Tool: 09960-10010 (09962-01000, 09963-01000) for left-hand timing pulley. To remove the crankshaft timing pulley start by uninstalling its bolt and timing belt plate followed by using Special Service Tool: 09950-50011 (09951-05010, 09952-05010, 09953-05010, 09953-05020, 09954-05010) before finally ensuring not to damage the sensor area. Examine the timing belt for damage and test it for immunity to bending, twisting, and exposure to oil, water or steam. Also inspect the idler pulleys together with timing belt tensioner for fluid leakage and normal operation. The first step involves installing the crankshaft timing pulley followed by timing belt plate attachment before installing the No. 1 idler pulley with adhesive Part No. 08833-00080 and completing the procedure with the No. 2 idler pulley. Proceed with the right-hand camshaft timing pulley installation by facing its flange outward while the left-hand pulley gets its flange positioned inward and both knock pins need to be aligned. Place the No. 1 cylinder at TDC/compression before installing the timing belt while maintaining engine temperature below 90 degrees Fahrenheit and keeping pulleys dust-free with proper alignment of installation marks to timing marks. Secure the hexagon wrench on the push rod after pressing it into the timing belt tensioner unit for installation before checking valve timing by aligning crankshaft markings. Finally, install the right-hand engine mounting bracket, No. 2 timing belt cover, timing belt guide, No. 1 timing belt cover, crankshaft pulley, No. 2 generator bracket, and the right-hand engine mounting components, reconnect DLC1 and ground strap connectors, and the engine coolant reservoir hose, followed by the power steering pump and generator drive belts, reinstalling the right-hand fender apron seal, front wheel, and outer front cowl top panel assembly, concluding with a vehicle road test to check for abnormal noise, shock, slippage, correct shift points, and smooth operation.