Smell coolant but..

[DHayden]

I had smelled coolant and checked under the hood a few days ago and noticed that the forward upper exhaust bolt was backed out quite a bit and the lower one was loose also and some coolant had run down the block.
I tightened all the bolts up again but I still smell coolant, is it just the residue burning and making the smell? I tried washing it off as much as possible but still get the smell.
I have to cross a hefty hill everyday to and from work and the truck heats up, not over heat but it gets about 3/4 into the safe zone (106 degree's outside). I assume it's mainly because of my fueling and injectors and me not slowing down to go over the hill. Is this what is causing my coolant smell? When the bolts were loose there was minimal coolant loss. I dont see any loss of coolant from the block or from the reservoir (as far as I can tell) the radiator level drops just a tad but there's a bit more in the over flow tank.
What do you guys say? I just changed the thermostat last year and seviced the radiator with Fleetguard Compleat. I also pulled over and checked the fan which was turning but I dont hear it come on and roar like others have spoke of.
This isnt an emergency per say, but if something is wrong and going to overheat the truck and ruin my engine I'd like to know now. As I said it doesnt overheat but I dont like seeing the temps climb that high everyday.