To replace a Timing Chain, sprockets, or tensioner, collect proper tools: rear pinion bearing race installer (J 5590) and Crankshaft gear remover (J 5825-A). Start off by taking off the Crankshaft position (CKP) sensor reluctor ring and then screw a 7/16-20 x 1 inch bolt into the end of the Crankshaft. Line up the timing marks prior to loosening the Timing Chain make sure that the number 4 cylinder is at top dead center (TDC) of the compression stroke. Leave the camshaft Timing Chain tensioner shoe; unsnap it from the pin; take the bolts holding the camshaft sprocket, and extract the camshaft sprocket and the camshaft Timing Chain. Remove the Crankshaft sprocket using Crankshaft gear remover (J 5825-A), open end wrench and Crankshaft balancer key. If necessary, remove the Timing Chain tensioner bracket bolt and bracket, clean and inspect the Timing Chain and sprockets. For installation, in case of the necessity of installation, install the Timing Chain tensioner bracket and bolt, tighten it to the 12 nm (106 inch lbs). Insert the key into the Crankshaft keyway in parallel or slightly inclined manner and align the Crankshaft count keyway with balancer key. Install the Crankshaft sprocket using the rear pinion bearing race installer (J 5590). When you install the camshaft sprocket, you should do so with the alignment mark facing the 6 o'clock location, while winding the Timing Chain around the Crankshaft sprocket and ensuring that it is in front of the engine and on the driver's side of said engine. Push the Timing Chain tensioner shoe underneath the tab of the bracket at the top and insert the camshaft Timing Chain sprocket to the Timing Chain such that the timing marks will be in line when you have it installed on the camshaft. Do not fix the camshaft sprocket with a hammer so that the expansion cup plug will not come off. Apply the camshaft sprocket bolts, tightening to 25 nm (18 ft. Lbs.), while making sure that the Crankshaft sprocket sits at the 12 o'clock position and the camshaft sprocket sits at the 6 o'clock position. Finally, remove the bolt off the Crankshaft and reattach the ckp sensor reluctor ring.