What does bad tensioner sound like?

If the tensioner is loose the belts may squeak or squeal, especially when the engine is first started. It is also possible for the tensioner pulley or bearing to wear out, in which case the vehicle will produce a grinding noise from the pulley. via

What kind of noise does a bad tensioner pulley make?

If any tensioner pulley begins to wear out with time, it'll create more of a chirping noise. You'll also hear the chirping noise if the pulley grooves are damaged. This happens over the years due to friction, leading to cracks in the belt. via

How much is it to replace a belt tensioner?

The average cost for a drive belt tensioner replacement is between $211 and $239. Labor costs are between $73 and $93, while parts are priced between $138 and $146. Taxes and fees are not included in the estimate. via

What are the signs of a bad alternator belt?

Symptoms of a Loose or Bad Alternator Belt

  • Battery / Alternator Warning Light.
  • Squealing Noise when chilly.
  • Heavy or Jiggery Steering.
  • Flickering or Dimming Lights.
  • Sudden Stall.
  • Dead Battery.
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    What does a tensioner do in a car?

    A tensioner maintains the correct amount of tension on the belt at all times throughout its duty cycle. It also helps protect other components such as the alternator and water pump from undue stress and premature failure. In addition, a tensioner is a relatively inexpensive part to replace. via

    Does a tensioner pulley spin?

    Checking the Tensioner

    Spin the pulley to see if it spins freely. If you hear grinding or the pulley doesn't spin freely, replace the tensioner. When you replace the belt, it should take a lot of muscle power to move the tensioner. If you can move it easily, the spring tension is most likely not tight enough. via

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