I know the first thing people will do is copy and paste the Fuel Pump issue but I think this is different.
When my car has sat for 2 days (or more) and when I go to start it I get this awful rattle noise from the rear hatch area. It lasts until I put it in gear and when I get to the stop sign about 100 yards away from my parking spot it will start again.
It almost sounds like something is lose in the back hatch. I have the security cover and it's "opened" and secured to the latch system. There is nothing else in the hatch.
Oddly enough this doesnt happen every time I start the car. It's only when it has sat for awhile.
Any ideas?
I also think I have the Fuel Pump issue on start up but it's not all the time. Sometimes I hear the loud "hum" and others I dont. I do not think this is the same noise as the noise I have is more like a plastic bag in the wind noise.