I have a 2004 Nissan Quest and it's making a thumping noise from the back tires there's nothing wrong with tires so what's the problem

Is this constant as you drive or is it only over bumps. Does the thump get faster as you drive faster. Alex

How have you determined there is nothing wrong with the tire? This could be a few things like something came loose and is rubbing on the brake rotor or wheel. Could be a wheel bearing. Ultimately you will need to lift the vehicle and perform a complete visual inspection of driveline components and wheels,tires, brakes. Alex

Hello, Just rotate your tires, if the noise moves, it's the tire/wheel.

This is going to be a lot easier to diagnose on a lift. If you bring it to a shop and its not obvious during the visual inspection they will likely run the car in the air while someone is underneath inspecting as the wheels are moving. I think its time for a shop visit. https://repairpal.com/repair-shops