Static sounding noise from back of the car

[Jason03c]

There’s a noise coming from the back of my 2008 350z it sounds like static but can’t be anything electrical it just started happening like a week ago. It has 30,000 miles on it. The link is below. Please help thank you I just got it about a month ago 

 

 Noise from 350z.

[mr v6]

Sounds like the fuel pump inside the tank to me. Mine makes a similar noise, you can hear it when parked at the side of the house with the window down.

[Jason03c]

21 hours ago, mr v6 said:

Sounds like the fuel pump inside the tank to me. Mine makes a similar noise, you can hear it when parked at the side of the house with the window down.

That’s what I’ve been reading, they said you can hear it prime with the ignition on and I can but the sound only happens when I start the car. And when I accelerate it is concsistent but when I let of the gas the sound stops for second. 

[mr v6]

Sounds exactly like mine, the initial prime is to pressurise the system, then it'll run once started. Isn't the Z a return-less system? I wouldn't worry about it Jason.

[Jason03c]

2 hours ago, mr v6 said:

Sounds exactly like mine, the initial prime is to pressurise the system, then it'll run once started. Isn't the Z a return-less system? I wouldn't worry about it Jason.

Lol it’s so annoying though. Thank you. It’s my first 350z so I’m getting worried about everything