loud noise under hood someone said it was the idle pulley.
Feb 23, 2013 at 9:42 PM
Squealing belt noise
2007 KIA OPTIMA
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Hello,
Typically a faulty belt of idler pulley will make a squealing or squeaking noise.
Here is a helpful video of diagnosis the process:
https://youtu.be/AEUe6uKxTv8
I have attached few articles that walks you thru the serpentine belt operations and provides some very good insight:
https://www.2carpros.com/articles/car-squeaking-noise
https://www.2carpros.com/articles/how-a-serpentine-belt-works
https://www.2carpros.com/articles/replace-serpentine-belt
https://www.2carpros.com/articles/how-a-serpentine-belt-tensioner-works
https://www.2carpros.com/articles/serpentine-belt-tensioner-replacement
I have also attached the belt diagram.
Please let me know if you have any questions.
Thank you.
Typically a faulty belt of idler pulley will make a squealing or squeaking noise.
Here is a helpful video of diagnosis the process:
https://youtu.be/AEUe6uKxTv8
I have attached few articles that walks you thru the serpentine belt operations and provides some very good insight:
https://www.2carpros.com/articles/car-squeaking-noise
https://www.2carpros.com/articles/how-a-serpentine-belt-works
https://www.2carpros.com/articles/replace-serpentine-belt
https://www.2carpros.com/articles/how-a-serpentine-belt-tensioner-works
https://www.2carpros.com/articles/serpentine-belt-tensioner-replacement
I have also attached the belt diagram.
Please let me know if you have any questions.
Thank you.
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
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Click here to log in and view diagram.
Jul 19, 2021 at 7:32 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.