When changing the left Timing Chain, first take away the spark plugs to rotate the Crankshaft easily, then remove the engine front cover. Following that, loosen and take out the right bank Timing Chain Tensioner (Tensioner), the Timing Chain shoe (Shoe), the Timing Chain Guide (Guide) and the Timing Chain (Chain). After that, take out the primary Timing Chain Tensioner (Tensioner), the primary upper Timing Chain Guide (Guide) and the primary Timing Chain (Chain) as well. The next step is to uninstall the right bank camshaft intermediate Timing Chain idler (Idler), the left bank Timing Chain Tensioner (Tensioner), the left bank Timing Chain shoe (Shoe), its guide and the chain itself. Check and clean every part of the camshaft timing drive, replacing them if required. To install, begin with the left bank Timing Chain (Chain), then the left bank camshaft intermediate Timing Chain idler (Idler), then the left bank Timing Chain Guide (Guide), the left bank Timing Chain shoe (Shoe) and end with the left bank Timing Chain Tensioner (Tensioner). Next, place the proper idler for your bank camshaft intermediate Timing Chain, install the primary chain, the primary upper guide and the primary tensioner. After this, put in the right bank Timing Chain, install the guide and shoe for the chain, add the Timing Chain Tensioner, place the spark plugs and fit the engine front cover.