Steve:

It is possible your leak is a crack or at a fitting and when the pipe cools and contracts the leak stops (I had a line to the rear cabin heater core behave that way a few years ago).  If so, this is an early warning … eventually it will just leak.

> On 04-Sep-2019, at 02:42, Steven Shelton <shelton4@GMAIL.COM> wrote:
> 
> We're in Great Falls, Montana, having driven here from Georgia in my 1985
> 1.9 liter. When we came out of the Lewis and Clark Interpretive Center,
> there was a steady drip of coolant from under the engine. At that rate of
> dripping I think there would have been more coolant on the ground if it
> leaked the whole time we were in the museum. I traced the leak to the area
> around the small hose behind the thermostat housing.
> 
> I drove into town to get a better signal to see if a vanagon shop is
> nearby. After being parked for a while I checked again, and there was no
> dripping. The coolant reservoir is only an inch low. Being late, we went to
> the local KOA ($$$). I just checked and the dirt below the engine is wet,
> but not dripping.
> 
> I replaced that hose 7 1/2 years ago. If the hose is leaking shouldn't the
> coolant leak all the time?