There is obviously a leak in the system. Take the truck for a spin, let it warm up and then leave it running in the driveway for a few minutes. Look for a drip. If you can't find anything, then your in more trouble. Shut the truck off, and check your oil for coolant because you likely need a head gasket.
Leaking from? Hose Water pump Intake gasket
Usually a heater core problem.
antifreeze smell inside car means that there is antifreeze leak somewhere. first check for wet spots under car when parked after running.if anti freeze is leaking from engine it will pool on the ground next check to see if heater core is leaking. that is usually the problem. if heater core is leaking, replace it
It depends on if you see the antifreeze leaking or it is just disappearing. If it is just disappearing then a bad head gasket or cracked head may be the problem. The smoking could actually be vaporized antifreeze. If that is the case don't run it until you can get it fixed.
It is possible and if it is you have a serious problem. Seek professional help.
A part has failed. Find where the leak starts, and fix that part.
The heater core is leaking. Replacing the heater core is your best bet.
What other symptoms besides leaking antifreeze? Where do you see the anti-freeze leaking?
You've got either a leaking intake gasket or a leaking head gasket. It's a serious problem which needs to be repaired.
I would check the hoses leading into your radiator, and also the overflow for antifreeze. If that is not the problem, it could be your heater core. Your heater core might be leaking, you might have a hose leaking
Intake manifold gasket leak....big problem with that engine. Sorry for the bad news.
If the engine overheats it can ruin it which can cost thousands of dollars.