The timing chain tensioner is vital because the timing chain relies heavily on this component to keep the right amount of tension.
Timing chain tensioner importanceMany vehicles that come equipped with a timing chain have the tensioner placed on the cylinder block. The timing chain plays a key role in making sure that the precise amount of tension of the timing chain surrounds the crankshaft and camshaft sprocket. It makes the chain run as smoothly as possible, keeping any uncommon noises from coming off the sprockets.
Common issues with a bad timing chain tensionerA bad timing chain tensioner can lead to the timing chain being loose, rattling, and it doesn't keep the chain in place.