Thumping when decelerating under 30 mph

[JLG7820]

I’m getting a thumping sound when I am
Decelerating under 30 mph or so. It’s a 2018 Moab with 25k miles. Stock other than tires. Any help is appreciated

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[chevymitchell]

I’m getting a thumping sound when I am
Decelerating under 30 mph or so. It’s a 2018 Moab with 25k miles. Stock other than tires. Any help is appreciated

A video of the noise instead of a pic of the Jeep would be handy. Lol.

Is it just deceleration or is when the brake pedal is applied?

 

[Roky]

I’m getting a thumping sound when I am
Decelerating under 30 mph or so. It’s a 2018 Moab with 25k miles. Stock other than tires. Any help is appreciated

https://www.jlwranglerforums.com/forum/threads/knock-in-rear-with-dana-44.16921/post-414551

 

[JLG7820]

It only happens when I coast. I don’t hear it when the brakes are applied. I drive like an old lady anyway. My wife said she thinks it sounds like the rear. I think it sounds like under my feet. I’m not sure. I have the extended warranty for 7 years 84k miles so I may just let dodge look at it. It’s not my daily driver

 

[Gripster]

Thumping makes me think it is drive shaft noise. Perhaps something is loose related rear axle control arms and upon engine braking you are getting twisting which changes piñon angle and thumping of drive shaft. Maybe you could park on a flat, place into neutral, apply parking break and then with a helper look underneath while helper pushes the car back and forth to look for a rotating axle.

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