Tire noise after tire rotation

Hi everyone, I have a 2015 Subaru Legacy. I took it to the dealer for a routine tire rotation, and now there’s a cyclical whump-whump noise when I drive. It’s loudest at lower speeds( below 35), but I can hear it when going faster. I took it back to the dealer right away, and they said they re-rotated the tires. I still hear the noise, and it’s louder than before. The dealer said not to worry about it because I’m not seeing any indicator lights, Any idea what could be going on? Thanks much

Have the tires put back in their original positions.

If the noise goes away, there’s a problem with the tires.

Tester

They’ve been rotated twice. How do you rerotate?

Welcome to the forum…

Take the vehicle to an independent auto repair shop and have them check it out…

It wouldn’t hurt to have the tires balanced (preferably using a road-force balance machine) in case any wheel weights got knocked off during the rotation or in case the belts in the tires have shifted.