The timing belt tensioner holds the timing belt tightly against multiple pulleys including camshaft pulleys, crankshaft... moreThe timing belt tensioner holds the timing belt tightly against multiple pulleys including camshaft pulleys, crankshaft pulleys, water pump pulleys, and idler pulleys
The belt tensioner is always in the path of the serpentine belt. Its pulleys are smaller than others on this path, so it's... moreThe belt tensioner is always in the path of the serpentine belt. Its pulleys are smaller than others on this path, so it's easy to identify