I bought a 1995 C2500 badly damaged bed to make a flat bed delivery truck.
Since a/c weather, I notice a slight odor like cat urine while running the
a/c. Any ideas?

I have also noticed that even with the blower in high, and blowing very
hard, most of the a\c comes out the floor outlet on the passenger side, and
enough out the defrost vents to cause condensation on the windshield after a
half hour or so. I don't recall any issues with the heat last winter.

Any similar experiences helpful.

You may have 2 problems.

1. A possible leaking heater core.

2. A non-functioning damper/door actuator which is an electric gizmo that
causes a little door to move and direct the air to where it should go.

For 1., get some engine coolant and cook it outside maybe in an empty tin
can. See if the steam coming off of this has the same odor as that in your
truck.



"Tim" wrote in message

"Bill" <billnomailnospamx (AT) yahoo (DOT) com> wrote

Thanks for the tips Bill.

I know what antifreeze or coolant smells like, and that's not it. But I will
open the radiator cap while it is cold an compare just in case it happens to
be contaminated and has a similar odor.

As for the actuator, should it be accessible without dropping the heater
box? I will get my snake light go under the dash and have a look.