Quote:
Originally Posted by Brian77
As I understand, it could be anything from jammed flaps to a monovalve to a cracked CCU unit.
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You can eliminate the monovalve as a source of the problem. The monovalve does nothing to control air flow. If your temperature was erratic or changed will driving, then it may be a possibility. I also think too many jump on the resolder the CCU bandwagon. I would look elsewhere first.
I would start by checking the air flow path. Did you hook all the air lines back up properly when reinstalling the dash? Then I would look at the flaps/controls.