What happens when your tensioner pulley goes out?

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.

What are the symptoms of a failing idler pulley?

Signs and Symptoms of a Bad Idler Pulley

• Chattering, Squealing, or Chirping Sound.
• Corroded Surface.
• Excessively Loose Idler Pulley.
• A Bad Idler Pulley May Spin Excessively.
• Slow to No Spin or Binding.

Can you replace the pulley on a belt tensioner?

More often than not, just the pulley goes bad on the tensioner, not the whole tensioner, and for most vehicles, you can purchase and replace the pulley instead of the tensioner itself. The pulley should be replaced if it has a lot of resistance when you spin it.

How do I know if I need a tensioner pulley?

Common signs include grinding or squeaking noises coming from the belt, unusual belt wear, and belt-driven accessories like the alternator failing.

Should I replace idler pulley and tensioner?

Alternatively, idlers spin with the overarching aim of moving belts to specific positions. However, if bearings fail, tensioner and idler pulleys both require replacement. If there is any odd noise such as a grinding or squealing sound or if either piece wobbles, it is a sign that replacement will be necessary.

How long does it take to replace a tensioner pulley?

If you are doing the job at home, give yourself about four hours to change all the parts. You will need the following tools and parts: Replacement idler pulley. Tensioner pulley.

How much does it cost to change a tensioner pulley?

between $125 and $380
It will cost between $125 and $380 to have your pulley replaced. The labor should cost between $45 and $155 and the parts should cost between $85 and $225.

How much does it cost to replace tensioner pulley?

What does tensioner noise sound like?

When the tensioner or tensioner pulley fails, the loss of tension can cause the belt and pulleys to make high-pitched rattling or chirping noises. If the pulley bearing completely fails, it can also cause a squealing or even a grinding noise. Symptom 2: Knocking or slapping. This can cause a slapping or knocking noise.