Hello,

I have this weird noice on my mitsubishi outlander sport 2015, from the front part, after starting the engine (After 5-10 minutes driving) like vacuum cleaner. It can be heard on low RPM, from 1100 to 1400.

It's changing with RPM meter, going up and down in synchron with RPM meter.
No one could get from which part it's coming.

Oil is changed on engine and gear.
113000 milesChanged the engine belt as well. the sound stayed

The only thing I noticed is that while driving on low speed and putting the gear in neutral, the sound is disappearing.

 

Any other symptoms like power loss or error codes?
I guess it is not the spinning fan, but then you need to read error codes via OBD2.
Try to turn off A/C and drive to exclude problem with noise coming from the compressor.

 

No, no check on the screen, no power loss. Just a weird noice from the front like a vacuum cleaner. sometimes I hear how this sound is like something is spinning. I have a guess, maybe it's one of the pulley.