Low coolant

I'd suggest regularly checking the level to see if/how much it is deceasing before worrying if you aren't having any other head gasket symptoms.
With the noise, do you mean every time you turn the car off for 2 seconds it happens? because your description just says "each time, even when the car is off"
each time what?
my car makes a couple second whirling noise when I turn it off. Never had an issue and always figured it was some system discharging/depressurizing.

 

The brake pump ing up the accumulator that's the worrying usually

 

There are a couple of things under the hood that can make whorrong and pumping noises generally you'll be hearing the break pump on the firewall You can put your hand behind the inverter and feel it It's not hot it's just there or the inverter pump which usually you don't really hear You can also put your hand and feel that right behind the driver's headlight and then there is a pump in the wheel well forward portion next to a thermos expansion light bottle and that runs in the morning at startup things like that but you usually won't hear that because you got the other two pumps running and you're fixing to back out the driveway and the beeper's on and all of that.

 

what's the miles?

 

When your brake assembly pump accumulator all that business on the firewall behind the inverter is starting to get to its end of life It will pump seemingly constantly when you're in the car when you're sitting there out of the car when it still think it's active and you might be driving in a few it'll keep the brakes pumped up once it goes to rest to sleep or whatever then no not really a huge issue but that pump is pumping a bit if you're 12 volts not up to snuff well and you're not driving the car it's just in the driveway so generally I get them replaced so they're not doing that Just part of the car you know it's one of those things you'll fix or you'll drive it around like it is and you won't until you're done and call it a day. The generation 3 you think the generation 2 is problematic that you're dealing with now Just wait till you have a generation 3 odds are it will be used obviously probably have a good bit of mileage on it look here how people are running their cars they're camping in them leaving the air conditioner on all night living in them so on you know so that's what you're going to be buying from whoever whatever the individual case may be just look at the general things going on here so imagine what's going on out there I would say get the generation too sorted have it running and doing everything like it's supposed to and then if you want to venture off and the generations 3 through 5 or something You have a well working backup so that doesn't make you make foolish quick decisions that are very costly when you own one of those other vehicles and it breaks If you don't have something else to drive you can be easily conned and to foolish decisions by unscrupulous silly people It happens every day so there's always that You've got the generation too You don't have to worry about how you're going to get to work for the next 10 days boom guaranteed that other car that's broken down you can get it moved by your buddy with his truck throw it in the driveway and let it rip until you have time to fool with it be surprised how long that time might be do you think you want to fool with it because after you own it it's not all that. The generation 2 still is