How To Inspect And Replace Belt Tensioner
Serpentine Belt Tensioner Replacement Belt Tensioner Operation: This device functions as an idler pulley and is located on either the inside or outside of the accessory drive belt. Its provides the correct tension for initial belt adjustment and maintains this critical tension adjustment during vehicle operation. It can be found on conventional V-belts and the newer serpentine ribbed belts. Inspect the belt tensioner for the following conditions: Noise If the belt squeals, the tensioner force may be insufficient. Check the belt length gauge, if the length is correct, replace the tensioner. If the tensioner clatters or rattles during engine operation, there may be internal interference or wear. Replace the tensioner. If the belt chirps, you may have a worn pulley or tensioner or cracks in the tensioner bas or arm. Check the mounting bolts, if they are okay, replace the tensioner. Sticking or Seized Tensioner or Idler If the tensioner does not operate smoothly