Hi,
I certainly hear it. Try a couple things for me. When you hear the noise, turn on as many electrical components as you have. For example, turn the headlamps on, the blower motor on high, the A/C, wipers and so on. The added load on the alternator should make it change in pitch. Also, try the water test.
Also, how old is the belt? The ribbed portion looks great, but the flat section appears to have a lot of wear marks. I attached the pic below that you sent and I'm referring to.
Let me know.
Joe
See pic below.
Image (Click to make bigger)
Friday, March 22nd, 2024 AT 9:04 PM