Strange noise

[Ben1001]

After some ideas:

I have a Gen 3 250 and I’ve noticed this noise twice now. Cold mornings on both occasions, it sounds like the noise is coming from inside the engine bay  - it’s more of an electrical noise, like a electric passing through a switch that’s stuck (if that makes sense). Lasts for 3-4 minutes. Turning the radio and blower off has no effect. Car seems to warm up and the noise is gone. Doesn’t sound healthy!

Any ideas folks?

[Martin F]

1 hour ago, Ben1001 said:

 - it’s more of an electrical noise, like a electric passing through a switch that’s stuck (if that makes sense).

You can hear electricity?  Cool 

[Ben1001]

Never heard electricity passing through power lines?

[Martin F]

No can't say I have, but even so, there is a big difference between 400kv and 12v

Anyway back to your issue, have you checked the vents for the heater inlet to make sure it is clear of leaves, and any debris? 

Also, just a thought have you checked your power steering fluid? 

[ColinBarber]

If possible try and find out where it is coming from in the engine bay next time it happens. Possibly a relay not switching correctly, although I'd expect something to not be working correctly if that were the case.

[modly]

Does it sound similar to this? 
That is what I get aprox 10 sec after cold start in the morning, 1 min its gone...
Any ideas?