On 30-Apr-2005, "O. Sami Saydjari" wrote:

When I use my (cabin air) heater, it starts to smoke a bit and smell if
I turn it more than half way up.

This may be a shot in the dark, but we had exactly the same problem on our
Arrow. Turned out to be a leaking hand brake master cylinder. The leaking
brake fluid dripped onto the cabin heat conduit and would smoke (and stink)
whenever the heater was turned on more than a little bit. Easy to check,
and fairly easy to fix if that's the problem.

--
-Elliott Drucker