Car Repair World

  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 or doesn't move, you ...

SERPENTINE BELT Working Of Cars Serpentine Belt Helpful Information On rare occasions, an engine can buck or jerk on start up which can suddenly cause a belt to jump out of place. There are several names used to describe a serpentine belt, including: drive belt, poly-v belt, multi-rib, and micro-v belt. These belts are designed with several "v" grooves which provides better traction for the drive and components pulleys than traditional single "v" belts. When the belt tensioner starts to fail it will allow the serpentine belt to get misaligned causing the belt to come off, the belt can be damaged in this event. Typically most people are able to replace a serpentine belt with basic automotive tools and repair knowledge. Maintenance Use a flashlight to perform a complete visual inspection of the serpentine belt, look for fraying, cracking or large pieces missing. When replacing the belt inspect all belt pulleys for damage or rough spots that will ef...