1991 Mercury Grand Marquis Heater A/C only delivers super hot air no setting alters this except OFF
my 1991 Mercury Grand Marquis has the Automatic temp control ... recently the
heater a/c only delivers super hot air to cabin..no setting on control changes
this except OFF.... repair suggestions?
More Info: controls do change air flow to defrost/floor/dash etc. Fan speed can be changed. AC settings with coldest temp still delivers super hot air, however to dash vents.
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