rattle / gurgle from dash!!!

[Fully]

the last week (i think) i have had this weird rattle/gurgle coming from my dash when im accelerating, when its at about 2000rpm / 40kms it happens.
its a really weird sound, i dont think its from the engine bay, pretty sure its the dash area. anyone got ne ideas??

cheers

[commy92]

did you have the aircon on..

[jack.mc]

did you have the aircon on..

Sounds aircon related to me too.

[Fully]

nah no aircon is on. always happens as well its not random. taking it to the mechanics on monday neway so i will get his opinion as well.

cheers

[yosy]

It may be air trapped in your heater core and when you get to a certian temp and pressure coolant/water will gurgle and swoosh in your heater core