The timing belt tensioner pulley helps control the right amount of tension on the timing belt.
Timing belt tensioner pulley functionThe timing belt makes the piston stroke of the crankshaft operate at the same time as the camshaft. The belt is made of a rubber-like material that maintains the components in the engine operating on time. The timing belt tends to stretch out over time, which is why the system often has one or two timing belt tensioners.
Common issues with a worn-out timing belt tensioner pulleyA worn-out tensioner pulley can lead to squealing, and uncommon rattling, or it may cause the timing belt to snap.