O.k. so I got an 06 Honda Element with the 2.4 engine. I drove it about 120 miles the other night and everything went beautifully. I let it sit about a day give or take a few hours so I decide to do a fluid check, everything checked out o.k. except when I took the radiator cap off, a little coolant overflowed out, not much at all and no hiss or air sound, but looked to have Some pressure behind it, very little though. Some vehicle specifics and related info:
112,600 miles
Engine temp runs perfect, always has
Coolant and oil looks good, levels look good so far.
I did notice a very small leak on the resovoir.
Some water comes out the exhaust, but nothing I would consider abnormal.
I did change the air intake filter and accidentally unhooked a coolant line.
Other then that, nothing to note. So is a a little pressure in the coolant system abnormal? Thoughts?