i' have noticed lately that when i start the car i hear water running
coming from like under the dash ,if any body knows what this is of if is normal
never herd this before

 

anybody where are the experts????

 

Maybe something with the heater core? A while back my Mazda PU made that kind of sound when the A/C needed a recharge because I guess the evaporator(the thing under the dash that cools the air)was filling with freon when I turned on the A/C on. I doubt that you are using your A/C now so maybe it's something with the heater core...