Heavy Knocking Sound Under Drivers Seat

[Yarbrr1]

I have a 2023 Tahoe High Country with 25K miles. Periodically there is a substantial heavy knocking sound, that I can actually feel beneath my drivers seat. It has happened at least 7-8 times since I purchased the vehicle new in 12/23. It is a heavy sound, almost like a heavy vent closing, and I can feel it also. At first I thought I ran over some road debris that was kicked up into the chassis, but it has happened too frequently and in the SAME spot every time. Anyone else experience this? Thank you!

 

[Joseph Garcia]

Welcome to the Forum from NH.

Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.

I hope that you will become a participating member in the Forum's discussions.

Pics of the truck, please.

I cannot personally assist you with your issue, but other members of this Forum much more knowledgeable than me in this area will chime in.

I've had a similar condition, when the mounts/bushings for my front differential failed, but the mileage on your truck seems too low for this to be the cause of your issue.

 

[Yarbrr1]

Thank you very much, and I agree the truck is too new for anything major I would think. Pic attached.

 

[Joseph Garcia]

Nice color!