Vibration and banging under body

[mr.oogieboogie]

After changing the belts on the car I noticed a vibration and sounds like banging against the bottom of the car. Cannot see anything loose or hanging. Removed the pas belt and replaced the tensioner nut.

Still sounds like something vibrating under the passenger seat. Could it be one of the steel pipes any advice welcome

[ramjet]

Do you have the fibreglass engine bay undertray on your car? The only thing that I could think of is the leading edge of the tray. Is it happening when the car is running or when you are driving? Loose bolts?

[mr.oogieboogie]

Hello. Tray is on the car.

It appears to happen when turning left. Will try with the under tray off to see if that helps.

All the best

[ramjet]

Let us know. There is n nothing under the seats on the body as you are not doubt aware, so I'm a bit stumped. Especially if it is only when you are turning left?