for a few weeks now my truck has been dripping antifreeze from the back of the motor, but at such a slow rate i only need to top off the coolant once a week or so. I was running through some mud earlier tonight and noticed i was running a little hotter than usual, so i got it home and pulled in the driveway. When i got out there was already a puddle of coolant on the ground and when i looked under the truck I could see it dripping from the same place only much faster. I'm thinking maybe I ran through some water and caused an already ruptured freeze plug to crack worse? The truck leaks even if it's shut off. Another thing i noticed is that even with the temp guage above 210, the rad cap was still cool and didn't vent any pressure when i removed it. What the hell? If the thermostat wasn't opening then how could coolant be circulating through the block to the freeze plug that's leaking? I've checked the intake manifold and heads for leaks and there are none. I'm stumped and I really want some insight before I decide to pull the tranny only to find the plugs are fine.