jpastor

When I start the car it sounds like lawn mower and recently after start up there is some vibrations which resonates in the interior and you can kinda heard it on the passenger side.

I have had this sound since i bought it and it very rarely happens but each year the frequency increases but does not happen on every startup.

here is a video I took since no once can figure it out. Hope you guys can shed some light on this.

https://youtu.be/Sh65oZqpK3g

thanks and best regards

BlownV8

You may want to get you car checked out. It sounds bad. Just a guess but with your engine I would suspect coolant in the cylinders from a bad head bolt.