Things to check in order
Radiator cap. Might as well just throw one at it since they are cheap.
Look closely under the passenger wheel well area, right on top of the primary bank 1 catalytic converter. That is where the heater core will drip. The small drip will evaporate with the heat so look very closely here. You might need to move the inner fender liner for this.
The small elbow hose from water pump to thermostat housing will sometime split and leak bit of steam before it blows. The split occurs on the inside of the elbow, so you might wipe it with a q tip to look for any color change on the cotton.
Timing cover leaks are often a PITA on these. Look for a small drip on the main crank pulley. Timing cover leaks usually appear when the engine sits overnight in cooler weather. Try to park over a piece of cardboard an check it in the Morning.
If you smell the coolant there is a leak somewhere. Engine heat may be drying the leak before you can see it. Good luck
