is recommended if air cond. doesn't work
Dont worry it is normal That is a feature built in to the unit that keeps the ac pump lubricated during the winter months, it should only come on while in defrost mode. I would not recommend disconnecting the air cond pump as it may not work at all when the warmer weather comes back.
poorly
A construction crane uses a large hook, or a wrecking ball.
Why the defrost may not work in a 1993 Chevy Caprice Classic could be because the heating core is out.
The most common cause for the defrost not properly working is a malfunctioning blending door. The blending door might be stuck halfway open. This would cause the defrost not to work unless the fan is on high.
It would depend on which defrost system is not working, the rearview mirrors, back window or front window.
No, the catalytic converter has nothing whatsoever to do with your defrost system.
Doesn't work in what way, exactly?
Defrost setting pulls all outside air.
NO It has NOTHING to do with defrost.
no but your defrost wont work well