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My 99 Wrangler is blowing steam from the AC vents. This gets even worse if I use the defroster as it immediately fogs up all the windows.I've considered two possible causes, (1) the heater core is leaking, or (2) condensation that has nowhere to drain.I haven't yet tried to isolate (bypass) the heater core, but that seems to be my next step in determining whether that is actually the problem.Any suggestons?
best bet ------ heater core sorry