"SMoo" > wrote in message
...
> I don't think there is coolant inside the vehicle...
>
> I've been told that this car has the core completely outside of the
cabin...
>
>

That may be so, but if the core is bad you most definitely are going to
smell
coolant with the heater or defroster on, since it's blowing air over the bad
core then into the passenger compartment. If you don't smell it then your
probably fine with the heater. You could have a crack in a hose going to
the heater. Hoses often crack first at stress points, such as where the
hose is clamped to a tube.

Another kind of rule of thumb is that if you have coolant just hissing or
dripping out, it's probably a hole or crack in some metal coolant line. If
you have coolant gushing out it's probably a crack in a flexible line like
a hose. When hoses crack the crack bursts open like a balloon popping
and usually gets a lot larger, a lot quicker. There are exceptions of
course
to this.

Ted