Focus L4-2.0L (2009)
Drive Belt Tensioner: Description and Operation
Accessory Drive
Belt Tensioner
NOTE: The accessory drive belt tensioner must be replaced as a complete unit.
Automatic tensioners are calibrated to provide the correct amount of tension to the belt for a given accessory drive system. Unless a spring or damping
band within the tensioner assembly breaks or some other mechanical part of the tensioner fails, there is no need to check the tensioner for correct tension.
