How do I know if my idler pulley bearing is bad?
Symptoms of a Bad or Failing Idler Pulley
- Visibly worn pulleys. One of the first symptoms of an issue with an idler pulley is visible wear on the pulley.
- Belt squealing. Another common symptom of a possible issue with the idler pulley is squealing from the engine belts.
- Damaged bearing or pulley.
How much does it cost to replace a pulley bearing?
The total price to replace the idler pulley typically ranges between $80 and $200, with the parts ranging between $40 and $90, and the total labor cost averaged between $40 and $110.
Why is my pulley making noise?
An engine pulley is mounted to the engine of an automobile and drives all belts. Belt and pulley noise is usually a screeching sound that has a repetitive pattern screeching on each revolution. The screech can be caused by a worn out belt or by the pulley attached to an engine accessory that is starting to freeze up.
Why is my pulley shaking?
Pulley Wobble If the tensioner pulley wobbles on its shaft, it means the interior shaft bearings have worn. This will cause a pulley misalignment. Bad bearings cause an audible growling noise. An excessively wobbling pulley can throw the belt off, causing all the accessories to quit functioning.
What happens if your crankshaft pulley is wobbling?
The crank pulley is pretty vital and affects the smoothness of the engine. If its wobbling then its bad. You may get away for years running it this way, or it may damage the main bearings.
Why is crankshaft pulley wobbling?
The pulley in the upper-right of the video frame is the crankshaft pulley. It’s hard for me to tell from video, but if that’s the one that is wobbling as it rotates, then it most likely is due to a distorted harmonic balancer.
Can I put WD-40 on a squeaky belt?
Spray just enough WD-40 onto the belt to lightly cover the area where the squeal occurs. Short, sharp blasts work best to ensure the belt is not saturated. Oversaturating the belt will result in severe slipping, which can permanently damage the belt.