[dpg]

Good day!!! I'm Dimas and my question is my '95 volvo 850 ( 190.500 miles) , two weeks ago start with a buss noise coming from the engine bay at the moment I turn the key even before the engine starts and the only way it dissapears is when I turn the engine off and put the key in off possition. Can someone knows what it can be?
Thanks

 

[rfilori]

What area is the noise coming from?

 

[dpg]

Comes from the engine bay I guess from the front left side, it start just at the moment I turn the key to the first position (accessory) where there is no engine start, and it keeps all the time until the engine is completely shut off