i just had my 02 in for the exact same thing. I smelled coolant in the truck as well as when i pop the hood. I have smelled it since the day i bought it 30k miles ago. NOt one drop of fluid has hit the ground and the coolant has not changed level at all but i still smell it. I had them pressure test the truck and they found nothing. maybe its just an x thing. OR we are all busted or something...lol