I have this odd noise when acelerating. The engine rumbles at 2000 rpms and up.
Days b4 I used a Injector cleaner added to the fuel almost at full, can this trigger the noise?
maybe a belt? I cleaned the motor and nothing.

Ceasar

 

Rumbling? Does it sound like the fan is going very fast?

 

something like that lol
its not that loud, but ... sounds

 

its a whistle

 

BTT