Something loose in the engine.

[vitzzz]

yes i have that noise also not sure what it is, sometimes i hear it from engine bay and sometimes from underneath. also there are noises from the fuel tank when i tap with my hand on the tank , i hear some type of noises which can be what we hear on bumps

[GeneW]

Originally Posted by vitzzz

yes i have that noise also not sure what it is, sometimes i hear it from engine bay and sometimes from underneath. also there are noises from the fuel tank when i tap with my hand on the tank , i hear some type of noises which can be what we hear on bumps

You are aware that the Yaris has FAR less sound proofing than most cars made today or in the past?

I've heard braking noises, gear train noises, exhaust rumblings and when I drive over road salt and gravel sounds like someone is pouring pea gravel onto a soda can.

I wonder if what you're experiencing is just the normal "sounds" of a Yaris?

Gene