Rushing water sound on first start up
 

I just bought a new 2013 JKU, and every morning on first start up it sounds like water is pouring out of the passenger side dash.. After it it warms up it goes away. Has anyone had this and what should I do?

Defective heater core?

That's the area the noise is coming from..???

I had that happen to another vehicle. There was air in the coolant system or something like that. Take it to the dealer for service.

Only fluid coming into that area is for the heater. Don't know. Does the heat even work?

Hmmmm not sure

Could be air in the line. Have you check radiator fluid levels. Fluids don't always get topped off for vehicles right off the truck to the buyers hands.

Levels look to be ok that's why I'm stumped

Not sure then. I know exactly what your hearing, I've heard the same thing in other vehicles in my past. Kinda sounds like the person up stairs is flushing the toilet. Never heard it my my '12 jk though.

It's got to be air I'm thinking... Cause it warms up and the thermo opens and maybe allows the air to go to the top????