I blocked off the hoses and took off the top of the mono valve. After I got the slug out, I checked the diaphragm for cracks and such. Everything looked fine. The screen didn't have much crud in it either. In fact, the whole mono valve doesn't look all that old.
I never had trouble with heat to the cabin itself, just getting it to the floorboards.
Does the mono valve affect the interior distribution?
Anyway, it looks ok. I really hope it doesn't come back to the CCU replacement.
Thanks again. I'll entertain any other theories out there, too.
Last edited by Gil; 10-24-2002 at 06:32 PM.