Weird flapping noise?

2008 CHEVROLET TRAILBLAZER
170,000 MILES
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PICKY_BONES
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My car started making a weird flapping noise when I turned into my street last night. I thought it was a flat tire at first, but all of my tires are fine. I made sure there was nothing stuck in the undercarriage or tires and it's still making that noise. It doesn't really change with the speed of the car and sounds like someone running in flip flops next to the car when driving. Thank you!
Oct 25, 2022 at 7:04 AM
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STRAILER
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This sounds like the driveshaft U joint has gone out, but to be sure can you please shoot a quick video with your phone so I can hear the noise? That way I can tell for sure what's going on. You can upload it here with your response. Here is how you can remove the driveshaft so you can inspect the U joints. The instructions for your car are in the images below.

https://www.2carpros.com/articles/how-to-remove-a-drive-shaft

Check out the images (below). Please let us know what happens.
Oct 25, 2022 at 11:42 AM