Could be the vents getting re-directed to defrost under load, or possibly your air intake on the engine. Those are my first two guesses.
On 2005-11-29 14:49, dodgethis12 wrote:
[size=+1]ITS THE COOLANT IN THE HEATER CORE....IF YOU DONT HEAR IT, THEN YOU NEED TO WORRY. THIS IS PERFECTLY NORMAL.....NUFF SAID![/size]