the last couple weeks its been cold early in the morning where i am, or at least what i think is cold, like 40. (im in san diego) and when i start my 90 se, i hear this liquid flowing loudly. i dont have any idea what it is. but its like when i just start my car up. and when i accelerate, the liquid noise gets louder. but then it goes away in like 5 minutes. i have no clue what it is. its not loud, but it is noticeable, if i dont have my sys bumpin. if anyone knows what the hell this is, holla back.

 

coolant passing heater core.
possible air in the coolant system too.

 

Thats what it is, when you turn your heater on the coolant starts passing through the heater core. I hear this sound all the time.

 

thanks guys. i was thinking it was the coolant, or something like that.