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if there are cracks on under side, wear of belt,,grooves missing on belt, just normal wear and tear!!
Improper belt tracking
Replace belt and check all pulleys for wear or rough spot
Check for small cracks or excessive wear in the surface of the belt, oil on the pulleys or buildup of debris in the grooves of the pulleys. belt tensioner may also be faulty. possible overstretched belt.
you probably need to replace a serpentine belt or a tensioner. check your belt and pulleys for abnormal wear and proper tension
Probably not. They are among the parts that are considered normal to wear out.
Possible misalignment of items on the belt path, causing wear to the sides of the belt, which would cause it to break. If the water pump was installed using excessive tourqe on one side, this could cause the pump to drag, and cause wear to the belt and overheating.
The idler pulley is a unit connected to the engine via a brace or bracket. This part merely routs the belt in a certain direction and, if bad, will cause a failure of the total serpentine system or cause belt wear as with any bad pulley in the system.
You don't. The belt tension is automatically adjusted via a spring loaded tensioner. If the serpentine belt is noisy or worn out prematurely. replace the tensioner. The belt should be inspected for cracks and other signs of wear. Replace worn out belt(s) before they break leaving you stranded.
The serpentine belt tensioner is not adjustable. If a new or 'young' belt is loose, likely the tensioner is going to have to be replaced.2 other causes of squealing are a worn belt, or if the surface of the belt has become glazed are a couple of causes of squealing.NOTE: The belt tensioner has a built-in wear indicator - it'll be hard to see, but there really are markings on the side to indicate when the spring is weakening and not holding the belt tight to the pullies.See "Related Questions" below for more
Replace it when it wears out. Inspect it regularly for cracks and wear.
Signs of: Cracking Wear Glazing Slippage It is original after 6 years?