Whyt would hot air blowi from a/c, heater and defrost setting
When turn on a/c or heat or defrost from Control Assembly nothing but hot air blows out of vents. Bland door motor and actuator have been checked and Okay. What else could be the problem.
im having the same problem..no matter what setting only hot air comes out....and from reading so many different post...its seems like this is a big issue that mecury has
Un plug low pressure switch pressure goes up havnt paper clip wire on two lead wire that go to that switch
i just got new blower motor in now it is blowing hot air before i had it instaled it was blowing cold air
Looking for a Used Grand Marquis in your area?
CarGurus has 1,701 nationwide Grand Marquis listings starting at $800.
Search Mercury Grand Marquis Questions
Mercury Grand Marquis Experts
Related Models For Sale
Used Cars For Sale