OEM 2006 Scion tC Timing Chain

2006 Scion tC Parts Questions & Experts Answers

• Q: How to service and repair the timing chain on 2006 Scion tC?

  A: Service and repair of the timing chain requires beginning with disconnecting the negative terminal cable and waiting at least 90 seconds to stop Air Bag and seat belt pretensioner activation. The service requires removal of the hood sub-assembly, front wheel RH, engine under covers RH and LH, front fender apron seal RH, and No. 1 engine cover sub-assembly through unhinging their 2 nuts. The service follows these steps: drain engine coolant and remove front exhaust pipe assembly, fan and generator V belt, generator assembly, vane pump assembly, and engine mounting insulator RH with specific procedures that avoid separating the two oil reservoir hoses. The ignition coil assembly and cylinder head cover sub-assembly must be removed while disconnecting ventilation hoses and engine wire clamps according to requirements. A transmission jack should be used to lift the engine before proceeding to remove the V-ribbed belt tensioner assembly with crankshaft position sensor and oil pan sub-assembly while using Special Service Tool: 09032-00100 to cut the applied sealer. The first cylinder needs to be positioned at TDC/compression through a pulley examination that matches the "0" mark with the timing position while verifying the alignment of camshaft timing gears. To remove the crankshaft pulley you should use Special Service Tools: 09213-54015 (91651-60855), 09330-00021 along with Special Service Tools: 09950-50013 (09951-05010, 09952-05010, 09953-05020, 09954-05021). Eliminate the assembly sequence of the No. 1 chain tensioner together with the timing chain cover sub-assembly followed by the removal of components such as No. 1 crankshaft position sensor plate, timing chain guide, chain tensioner slipper, chain sub-assembly, No. 1 chain vibration damper, crankshaft timing sprocket, and No. 2 chain sub-assembly in strict order according to prescribed procedures for each part.