I could not sleep and went outside to smoke one, walked outside and I hear a whirring noise coming from my truck. Go over to my truck and it sounded like the noise was coming from the intercooler pump and I could also hear water/fluid moving through the line. Is it normal for the pump to kick on even when the truck is turned off? Almost a year of being boosted and this is the first time i've heard this noise when the truck is off. Any help appreciated, leaving for texfest tomorrow morning and need to know if something's wrong before I get on the road.