Coolant game streaming out

[Slate 01]

Here we go:

No coolant leaking out from water pump.

Color of fluid is normal and not discolored.

Only leaks out in little stream under car near right rear tire. The first time it leaked out a nice consistent stream of 3/4 gallon. Showed signs of fluid had come out under the coolant reservoir cap (no wet carpet in truck, only some coolant up in the coolant and oil cap area in trunk). Bought new genuine porsche cap, topped off coolant to max. line. Took a 20 minute drive, temp stayed just a hair above 180 degrees the whole drive. Parked in garage, then a little stream in the same location by rear wheel came out, this time only maybe 1/6 of a gallon.

thought it may be some type of air gap from the first coolant cap failure since so little coolant came out after cap was replaced.

You mentioned flipping a coolant switch with the cap off, is that located under the car and/or can you describe where I find it? I would like to do that before I take it out again and see if that is the solution. Even if I don't find the switch, should I remove the coolant cap and start the engine and see if it burps out some air, then take it for a drive?

BTW, I have not driven the car since the second leak, I'll take it out again tonight and see what happens and report.

Thanks Porschites, much appreciated.